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Finding the Fourth Proportional to 159,676.20, 220,348.92 and 88,055.04

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Solution

The fourth proportional to 159,676.20, 220,348.92 and 88,055.04 is: 121,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,676.20 : 220,348.92 = 88,055.04 : x
  2. Step 2: Convert to fraction form
    159,676.20/220,348.92 = 88,055.04/x
  3. Step 3: Cross multiply
    159,676.20x = 220,348.92 × 88,055.04
  4. Step 4: Simplify right side
    159,676.20x = 19,402,832,964.56
  5. Step 5: Solve for x
    x = 19,402,832,964.56/159,676.20
  6. Step 6: Final answer
    x = 121,513.62

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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.