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Finding the Fourth Proportional to 317,414.84, 476,125.02 and 80,757.76

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Solution

The fourth proportional to 317,414.84, 476,125.02 and 80,757.76 is: 121,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,414.84 : 476,125.02 = 80,757.76 : x
  2. Step 2: Convert to fraction form
    317,414.84/476,125.02 = 80,757.76/x
  3. Step 3: Cross multiply
    317,414.84x = 476,125.02 × 80,757.76
  4. Step 4: Simplify right side
    317,414.84x = 38,450,790,095.16
  5. Step 5: Solve for x
    x = 38,450,790,095.16/317,414.84
  6. Step 6: Final answer
    x = 121,137.34

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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.