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Finding the Fourth Proportional to 227,663.76, 341,512.14 and 87,422.39

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Solution

The fourth proportional to 227,663.76, 341,512.14 and 87,422.39 is: 131,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,663.76 : 341,512.14 = 87,422.39 : x
  2. Step 2: Convert to fraction form
    227,663.76/341,512.14 = 87,422.39/x
  3. Step 3: Cross multiply
    227,663.76x = 341,512.14 × 87,422.39
  4. Step 4: Simplify right side
    227,663.76x = 29,855,805,785.25
  5. Step 5: Solve for x
    x = 29,855,805,785.25/227,663.76
  6. Step 6: Final answer
    x = 131,139.91

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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.