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Finding the Fourth Proportional to 317,240.28, 475,749.73 and 127,651.52

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Solution

The fourth proportional to 317,240.28, 475,749.73 and 127,651.52 is: 191,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,240.28 : 475,749.73 = 127,651.52 : x
  2. Step 2: Convert to fraction form
    317,240.28/475,749.73 = 127,651.52/x
  3. Step 3: Cross multiply
    317,240.28x = 475,749.73 × 127,651.52
  4. Step 4: Simplify right side
    317,240.28x = 60,730,176,174.09
  5. Step 5: Solve for x
    x = 60,730,176,174.09/317,240.28
  6. Step 6: Final answer
    x = 191,432.74

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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.