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Finding the Fourth Proportional to 159,526.56, 220,138.66 and 87,905.04

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Solution

The fourth proportional to 159,526.56, 220,138.66 and 87,905.04 is: 121,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,526.56 : 220,138.66 = 87,905.04 : x
  2. Step 2: Convert to fraction form
    159,526.56/220,138.66 = 87,905.04/x
  3. Step 3: Cross multiply
    159,526.56x = 220,138.66 × 87,905.04
  4. Step 4: Simplify right side
    159,526.56x = 19,351,297,712.85
  5. Step 5: Solve for x
    x = 19,351,297,712.85/159,526.56
  6. Step 6: Final answer
    x = 121,304.55

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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.