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Finding the Fourth Proportional to 159,959.03, 220,734.59 and 99,527.76

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Solution

The fourth proportional to 159,959.03, 220,734.59 and 99,527.76 is: 137,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,959.03 : 220,734.59 = 99,527.76 : x
  2. Step 2: Convert to fraction form
    159,959.03/220,734.59 = 99,527.76/x
  3. Step 3: Cross multiply
    159,959.03x = 220,734.59 × 99,527.76
  4. Step 4: Simplify right side
    159,959.03x = 21,969,218,799.58
  5. Step 5: Solve for x
    x = 21,969,218,799.58/159,959.03
  6. Step 6: Final answer
    x = 137,342.79

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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.