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Finding the Fourth Proportional to 92,772.50, 138,974.43 and 45,882.26

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Solution

The fourth proportional to 92,772.50, 138,974.43 and 45,882.26 is: 68,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,772.50 : 138,974.43 = 45,882.26 : x
  2. Step 2: Convert to fraction form
    92,772.50/138,974.43 = 45,882.26/x
  3. Step 3: Cross multiply
    92,772.50x = 138,974.43 × 45,882.26
  4. Step 4: Simplify right side
    92,772.50x = 6,376,460,930.61
  5. Step 5: Solve for x
    x = 6,376,460,930.61/92,772.50
  6. Step 6: Final answer
    x = 68,732.23

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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.