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Finding the Fourth Proportional to 137,600.79, 206,379 and 37,737.78

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Solution

The fourth proportional to 137,600.79, 206,379 and 37,737.78 is: 56,600.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,600.79 : 206,379 = 37,737.78 : x
  2. Step 2: Convert to fraction form
    137,600.79/206,379 = 37,737.78/x
  3. Step 3: Cross multiply
    137,600.79x = 206,379 × 37,737.78
  4. Step 4: Simplify right side
    137,600.79x = 7,788,285,298.62
  5. Step 5: Solve for x
    x = 7,788,285,298.62/137,600.79
  6. Step 6: Final answer
    x = 56,600.59

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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.