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Finding the Fourth Proportional to 95,126.72, 142,456.80 and 65,461.28

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Solution

The fourth proportional to 95,126.72, 142,456.80 and 65,461.28 is: 98,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,126.72 : 142,456.80 = 65,461.28 : x
  2. Step 2: Convert to fraction form
    95,126.72/142,456.80 = 65,461.28/x
  3. Step 3: Cross multiply
    95,126.72x = 142,456.80 × 65,461.28
  4. Step 4: Simplify right side
    95,126.72x = 9,325,404,472.70
  5. Step 5: Solve for x
    x = 9,325,404,472.70/95,126.72
  6. Step 6: Final answer
    x = 98,031.39

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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.