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Finding the Fourth Proportional to 317,375.92, 476,040.96 and 148,934.56

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Solution

The fourth proportional to 317,375.92, 476,040.96 and 148,934.56 is: 223,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,375.92 : 476,040.96 = 148,934.56 : x
  2. Step 2: Convert to fraction form
    317,375.92/476,040.96 = 148,934.56/x
  3. Step 3: Cross multiply
    317,375.92x = 476,040.96 × 148,934.56
  4. Step 4: Simplify right side
    317,375.92x = 70,898,950,919.58
  5. Step 5: Solve for x
    x = 70,898,950,919.58/317,375.92
  6. Step 6: Final answer
    x = 223,391.08

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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.