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Finding the Fourth Proportional to 109,505.76, 151,117.68 and 59,204.76

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Solution

The fourth proportional to 109,505.76, 151,117.68 and 59,204.76 is: 81,702.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,505.76 : 151,117.68 = 59,204.76 : x
  2. Step 2: Convert to fraction form
    109,505.76/151,117.68 = 59,204.76/x
  3. Step 3: Cross multiply
    109,505.76x = 151,117.68 × 59,204.76
  4. Step 4: Simplify right side
    109,505.76x = 8,946,885,976.16
  5. Step 5: Solve for x
    x = 8,946,885,976.16/109,505.76
  6. Step 6: Final answer
    x = 81,702.42

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Half scale
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Double scale
Find fourth proportional to 109,506.76, 151,119.06 and 59,205.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.