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Finding the Fourth Proportional to 109,980.48, 151,772.53 and 59,679.48

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Solution

The fourth proportional to 109,980.48, 151,772.53 and 59,679.48 is: 82,357.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,980.48 : 151,772.53 = 59,679.48 : x
  2. Step 2: Convert to fraction form
    109,980.48/151,772.53 = 59,679.48/x
  3. Step 3: Cross multiply
    109,980.48x = 151,772.53 × 59,679.48
  4. Step 4: Simplify right side
    109,980.48x = 9,057,705,668.68
  5. Step 5: Solve for x
    x = 9,057,705,668.68/109,980.48
  6. Step 6: Final answer
    x = 82,357.39

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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.