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Finding the Fourth Proportional to 317,751.92, 476,627.48 and 81,094.62

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Solution

The fourth proportional to 317,751.92, 476,627.48 and 81,094.62 is: 121,641.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,751.92 : 476,627.48 = 81,094.62 : x
  2. Step 2: Convert to fraction form
    317,751.92/476,627.48 = 81,094.62/x
  3. Step 3: Cross multiply
    317,751.92x = 476,627.48 × 81,094.62
  4. Step 4: Simplify right side
    317,751.92x = 38,651,924,372.16
  5. Step 5: Solve for x
    x = 38,651,924,372.16/317,751.92
  6. Step 6: Final answer
    x = 121,641.83

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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.