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Finding the Fourth Proportional to 109,980.75, 151,773.84 and 59,679.75

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Solution

The fourth proportional to 109,980.75, 151,773.84 and 59,679.75 is: 82,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,980.75 : 151,773.84 = 59,679.75 : x
  2. Step 2: Convert to fraction form
    109,980.75/151,773.84 = 59,679.75/x
  3. Step 3: Cross multiply
    109,980.75x = 151,773.84 × 59,679.75
  4. Step 4: Simplify right side
    109,980.75x = 9,057,824,827.74
  5. Step 5: Solve for x
    x = 9,057,824,827.74/109,980.75
  6. Step 6: Final answer
    x = 82,358.27

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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.