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Finding the Fourth Proportional to 137,716.66, 206,613.56 and 48,979.13

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Solution

The fourth proportional to 137,716.66, 206,613.56 and 48,979.13 is: 73,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,716.66 : 206,613.56 = 48,979.13 : x
  2. Step 2: Convert to fraction form
    137,716.66/206,613.56 = 48,979.13/x
  3. Step 3: Cross multiply
    137,716.66x = 206,613.56 × 48,979.13
  4. Step 4: Simplify right side
    137,716.66x = 10,119,752,528.83
  5. Step 5: Solve for x
    x = 10,119,752,528.83/137,716.66
  6. Step 6: Final answer
    x = 73,482.42

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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.