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Finding the Fourth Proportional to 83,608.13, 125,500.86 and 74,053.02

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Solution

The fourth proportional to 83,608.13, 125,500.86 and 74,053.02 is: 111,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,608.13 : 125,500.86 = 74,053.02 : x
  2. Step 2: Convert to fraction form
    83,608.13/125,500.86 = 74,053.02/x
  3. Step 3: Cross multiply
    83,608.13x = 125,500.86 × 74,053.02
  4. Step 4: Simplify right side
    83,608.13x = 9,293,717,695.60
  5. Step 5: Solve for x
    x = 9,293,717,695.60/83,608.13
  6. Step 6: Final answer
    x = 111,158.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.