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Finding the Fourth Proportional to 74,287.96, 102,397.52 and 60,835.48

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Solution

The fourth proportional to 74,287.96, 102,397.52 and 60,835.48 is: 83,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,287.96 : 102,397.52 = 60,835.48 : x
  2. Step 2: Convert to fraction form
    74,287.96/102,397.52 = 60,835.48/x
  3. Step 3: Cross multiply
    74,287.96x = 102,397.52 × 60,835.48
  4. Step 4: Simplify right side
    74,287.96x = 6,229,402,176.10
  5. Step 5: Solve for x
    x = 6,229,402,176.10/74,287.96
  6. Step 6: Final answer
    x = 83,854.80

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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.