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Finding the Fourth Proportional to 91,862.84, 137,810.36 and 41,947.97

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Solution

The fourth proportional to 91,862.84, 137,810.36 and 41,947.97 is: 62,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,862.84 : 137,810.36 = 41,947.97 : x
  2. Step 2: Convert to fraction form
    91,862.84/137,810.36 = 41,947.97/x
  3. Step 3: Cross multiply
    91,862.84x = 137,810.36 × 41,947.97
  4. Step 4: Simplify right side
    91,862.84x = 5,780,864,262.79
  5. Step 5: Solve for x
    x = 5,780,864,262.79/91,862.84
  6. Step 6: Final answer
    x = 62,929.30

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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.