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Finding the Fourth Proportional to 317,034.18, 475,544.36 and 77,149.16

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Solution

The fourth proportional to 317,034.18, 475,544.36 and 77,149.16 is: 115,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,034.18 : 475,544.36 = 77,149.16 : x
  2. Step 2: Convert to fraction form
    317,034.18/475,544.36 = 77,149.16/x
  3. Step 3: Cross multiply
    317,034.18x = 475,544.36 × 77,149.16
  4. Step 4: Simplify right side
    317,034.18x = 36,687,846,972.73
  5. Step 5: Solve for x
    x = 36,687,846,972.73/317,034.18
  6. Step 6: Final answer
    x = 115,722.05

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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.