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Finding the Fourth Proportional to 317,348.64, 475,789.68 and 151,253.28

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Solution

The fourth proportional to 317,348.64, 475,789.68 and 151,253.28 is: 226,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,348.64 : 475,789.68 = 151,253.28 : x
  2. Step 2: Convert to fraction form
    317,348.64/475,789.68 = 151,253.28/x
  3. Step 3: Cross multiply
    317,348.64x = 475,789.68 × 151,253.28
  4. Step 4: Simplify right side
    317,348.64x = 71,964,749,690.15
  5. Step 5: Solve for x
    x = 71,964,749,690.15/317,348.64
  6. Step 6: Final answer
    x = 226,768.74

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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.