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Finding the Fourth Proportional to 91,732.64, 126,617.92 and 59,906.48

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Solution

The fourth proportional to 91,732.64, 126,617.92 and 59,906.48 is: 82,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.64 : 126,617.92 = 59,906.48 : x
  2. Step 2: Convert to fraction form
    91,732.64/126,617.92 = 59,906.48/x
  3. Step 3: Cross multiply
    91,732.64x = 126,617.92 × 59,906.48
  4. Step 4: Simplify right side
    91,732.64x = 7,585,233,892.12
  5. Step 5: Solve for x
    x = 7,585,233,892.12/91,732.64
  6. Step 6: Final answer
    x = 82,688.49

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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.