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Finding the Fourth Proportional to 137,710.10, 206,565.15 and 49,063.70

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Solution

The fourth proportional to 137,710.10, 206,565.15 and 49,063.70 is: 73,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,710.10 : 206,565.15 = 49,063.70 : x
  2. Step 2: Convert to fraction form
    137,710.10/206,565.15 = 49,063.70/x
  3. Step 3: Cross multiply
    137,710.10x = 206,565.15 × 49,063.70
  4. Step 4: Simplify right side
    137,710.10x = 10,134,850,550.06
  5. Step 5: Solve for x
    x = 10,134,850,550.06/137,710.10
  6. Step 6: Final answer
    x = 73,595.55

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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.