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Finding the Fourth Proportional to 317,046.52, 475,725.44 and 127,499.22

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Solution

The fourth proportional to 317,046.52, 475,725.44 and 127,499.22 is: 191,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,046.52 : 475,725.44 = 127,499.22 : x
  2. Step 2: Convert to fraction form
    317,046.52/475,725.44 = 127,499.22/x
  3. Step 3: Cross multiply
    317,046.52x = 475,725.44 × 127,499.22
  4. Step 4: Simplify right side
    317,046.52x = 60,654,622,534.16
  5. Step 5: Solve for x
    x = 60,654,622,534.16/317,046.52
  6. Step 6: Final answer
    x = 191,311.43

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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.