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Finding the Fourth Proportional to 317,740.38, 476,669.25 and 104,520.30

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Solution

The fourth proportional to 317,740.38, 476,669.25 and 104,520.30 is: 156,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,740.38 : 476,669.25 = 104,520.30 : x
  2. Step 2: Convert to fraction form
    317,740.38/476,669.25 = 104,520.30/x
  3. Step 3: Cross multiply
    317,740.38x = 476,669.25 × 104,520.30
  4. Step 4: Simplify right side
    317,740.38x = 49,821,613,010.78
  5. Step 5: Solve for x
    x = 49,821,613,010.78/317,740.38
  6. Step 6: Final answer
    x = 156,799.75

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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.