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Finding the Fourth Proportional to 159,701.76, 220,159.40 and 125,651.52

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Solution

The fourth proportional to 159,701.76, 220,159.40 and 125,651.52 is: 173,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,701.76 : 220,159.40 = 125,651.52 : x
  2. Step 2: Convert to fraction form
    159,701.76/220,159.40 = 125,651.52/x
  3. Step 3: Cross multiply
    159,701.76x = 220,159.40 × 125,651.52
  4. Step 4: Simplify right side
    159,701.76x = 27,663,363,252.29
  5. Step 5: Solve for x
    x = 27,663,363,252.29/159,701.76
  6. Step 6: Final answer
    x = 173,218.90

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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.