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Finding the Fourth Proportional to 317,342.64, 475,780.68 and 151,247.28

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Solution

The fourth proportional to 317,342.64, 475,780.68 and 151,247.28 is: 226,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,342.64 : 475,780.68 = 151,247.28 : x
  2. Step 2: Convert to fraction form
    317,342.64/475,780.68 = 151,247.28/x
  3. Step 3: Cross multiply
    317,342.64x = 475,780.68 × 151,247.28
  4. Step 4: Simplify right side
    317,342.64x = 71,960,533,726.55
  5. Step 5: Solve for x
    x = 71,960,533,726.55/317,342.64
  6. Step 6: Final answer
    x = 226,759.74

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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.