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Finding the Fourth Proportional to 508,263.92, 762,423.24 and 134,276.72

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Solution

The fourth proportional to 508,263.92, 762,423.24 and 134,276.72 is: 201,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,263.92 : 762,423.24 = 134,276.72 : x
  2. Step 2: Convert to fraction form
    508,263.92/762,423.24 = 134,276.72/x
  3. Step 3: Cross multiply
    508,263.92x = 762,423.24 × 134,276.72
  4. Step 4: Simplify right side
    508,263.92x = 102,375,691,918.97
  5. Step 5: Solve for x
    x = 102,375,691,918.97/508,263.92
  6. Step 6: Final answer
    x = 201,422.31

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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.