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Finding the Fourth Proportional to 317,908.97, 476,844.15 and 112,753.79

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Solution

The fourth proportional to 317,908.97, 476,844.15 and 112,753.79 is: 169,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,908.97 : 476,844.15 = 112,753.79 : x
  2. Step 2: Convert to fraction form
    317,908.97/476,844.15 = 112,753.79/x
  3. Step 3: Cross multiply
    317,908.97x = 476,844.15 × 112,753.79
  4. Step 4: Simplify right side
    317,908.97x = 53,765,985,921.11
  5. Step 5: Solve for x
    x = 53,765,985,921.11/317,908.97
  6. Step 6: Final answer
    x = 169,123.84

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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.