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Finding the Fourth Proportional to 137,557.78, 206,159.08 and 61,600.71

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Solution

The fourth proportional to 137,557.78, 206,159.08 and 61,600.71 is: 92,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,557.78 : 206,159.08 = 61,600.71 : x
  2. Step 2: Convert to fraction form
    137,557.78/206,159.08 = 61,600.71/x
  3. Step 3: Cross multiply
    137,557.78x = 206,159.08 × 61,600.71
  4. Step 4: Simplify right side
    137,557.78x = 12,699,545,014.53
  5. Step 5: Solve for x
    x = 12,699,545,014.53/137,557.78
  6. Step 6: Final answer
    x = 92,321.53

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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.