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Finding the Fourth Proportional to 59,935.60, 90,000.60 and 40,301.20

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Solution

The fourth proportional to 59,935.60, 90,000.60 and 40,301.20 is: 60,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,935.60 : 90,000.60 = 40,301.20 : x
  2. Step 2: Convert to fraction form
    59,935.60/90,000.60 = 40,301.20/x
  3. Step 3: Cross multiply
    59,935.60x = 90,000.60 × 40,301.20
  4. Step 4: Simplify right side
    59,935.60x = 3,627,132,180.72
  5. Step 5: Solve for x
    x = 3,627,132,180.72/59,935.60
  6. Step 6: Final answer
    x = 60,517.16

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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.