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Finding the Fourth Proportional to 91,569.71, 137,401.44 and 43,592.61

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Solution

The fourth proportional to 91,569.71, 137,401.44 and 43,592.61 is: 65,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.71 : 137,401.44 = 43,592.61 : x
  2. Step 2: Convert to fraction form
    91,569.71/137,401.44 = 43,592.61/x
  3. Step 3: Cross multiply
    91,569.71x = 137,401.44 × 43,592.61
  4. Step 4: Simplify right side
    91,569.71x = 5,989,687,387.36
  5. Step 5: Solve for x
    x = 5,989,687,387.36/91,569.71
  6. Step 6: Final answer
    x = 65,411.23

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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.