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Finding the Fourth Proportional to 159,746.97, 220,451.54 and 88,126.98

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Solution

The fourth proportional to 159,746.97, 220,451.54 and 88,126.98 is: 121,615.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,746.97 : 220,451.54 = 88,126.98 : x
  2. Step 2: Convert to fraction form
    159,746.97/220,451.54 = 88,126.98/x
  3. Step 3: Cross multiply
    159,746.97x = 220,451.54 × 88,126.98
  4. Step 4: Simplify right side
    159,746.97x = 19,427,728,456.55
  5. Step 5: Solve for x
    x = 19,427,728,456.55/159,746.97
  6. Step 6: Final answer
    x = 121,615.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.