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Finding the Fourth Proportional to 159,809.80, 239,546.19 and 53,165.28

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Solution

The fourth proportional to 159,809.80, 239,546.19 and 53,165.28 is: 79,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,809.80 : 239,546.19 = 53,165.28 : x
  2. Step 2: Convert to fraction form
    159,809.80/239,546.19 = 53,165.28/x
  3. Step 3: Cross multiply
    159,809.80x = 239,546.19 × 53,165.28
  4. Step 4: Simplify right side
    159,809.80x = 12,735,539,066.55
  5. Step 5: Solve for x
    x = 12,735,539,066.55/159,809.80
  6. Step 6: Final answer
    x = 79,691.85

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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.