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Finding the Fourth Proportional to 91,294.38, 126,007.29 and 59,407.92

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Solution

The fourth proportional to 91,294.38, 126,007.29 and 59,407.92 is: 81,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,294.38 : 126,007.29 = 59,407.92 : x
  2. Step 2: Convert to fraction form
    91,294.38/126,007.29 = 59,407.92/x
  3. Step 3: Cross multiply
    91,294.38x = 126,007.29 × 59,407.92
  4. Step 4: Simplify right side
    91,294.38x = 7,485,831,003.74
  5. Step 5: Solve for x
    x = 7,485,831,003.74/91,294.38
  6. Step 6: Final answer
    x = 81,996.62

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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.