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Finding the Fourth Proportional to 206,732.09, 310,115.15 and 88,404.45

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Solution

The fourth proportional to 206,732.09, 310,115.15 and 88,404.45 is: 132,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,732.09 : 310,115.15 = 88,404.45 : x
  2. Step 2: Convert to fraction form
    206,732.09/310,115.15 = 88,404.45/x
  3. Step 3: Cross multiply
    206,732.09x = 310,115.15 × 88,404.45
  4. Step 4: Simplify right side
    206,732.09x = 27,415,558,830.40
  5. Step 5: Solve for x
    x = 27,415,558,830.40/206,732.09
  6. Step 6: Final answer
    x = 132,613.95

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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.