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Finding the Fourth Proportional to 61,860.88, 92,787.96 and 38,172.94

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Solution

The fourth proportional to 61,860.88, 92,787.96 and 38,172.94 is: 57,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860.88 : 92,787.96 = 38,172.94 : x
  2. Step 2: Convert to fraction form
    61,860.88/92,787.96 = 38,172.94/x
  3. Step 3: Cross multiply
    61,860.88x = 92,787.96 × 38,172.94
  4. Step 4: Simplify right side
    61,860.88x = 3,541,989,229.80
  5. Step 5: Solve for x
    x = 3,541,989,229.80/61,860.88
  6. Step 6: Final answer
    x = 57,257.34

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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.