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Finding the Fourth Proportional to 137,543.82, 206,319.65 and 62,625.30

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Solution

The fourth proportional to 137,543.82, 206,319.65 and 62,625.30 is: 93,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,543.82 : 206,319.65 = 62,625.30 : x
  2. Step 2: Convert to fraction form
    137,543.82/206,319.65 = 62,625.30/x
  3. Step 3: Cross multiply
    137,543.82x = 206,319.65 × 62,625.30
  4. Step 4: Simplify right side
    137,543.82x = 12,920,829,664.02
  5. Step 5: Solve for x
    x = 12,920,829,664.02/137,543.82
  6. Step 6: Final answer
    x = 93,939.73

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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.