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Finding the Fourth Proportional to 317,468.97, 476,202.12 and 115,017.61

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Solution

The fourth proportional to 317,468.97, 476,202.12 and 115,017.61 is: 172,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,468.97 : 476,202.12 = 115,017.61 : x
  2. Step 2: Convert to fraction form
    317,468.97/476,202.12 = 115,017.61/x
  3. Step 3: Cross multiply
    317,468.97x = 476,202.12 × 115,017.61
  4. Step 4: Simplify right side
    317,468.97x = 54,771,630,909.84
  5. Step 5: Solve for x
    x = 54,771,630,909.84/317,468.97
  6. Step 6: Final answer
    x = 172,525.93

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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.