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Finding the Fourth Proportional to 158,651.62, 218,975.99 and 101,964.58

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Solution

The fourth proportional to 158,651.62, 218,975.99 and 101,964.58 is: 140,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,651.62 : 218,975.99 = 101,964.58 : x
  2. Step 2: Convert to fraction form
    158,651.62/218,975.99 = 101,964.58/x
  3. Step 3: Cross multiply
    158,651.62x = 218,975.99 × 101,964.58
  4. Step 4: Simplify right side
    158,651.62x = 22,327,793,793.17
  5. Step 5: Solve for x
    x = 22,327,793,793.17/158,651.62
  6. Step 6: Final answer
    x = 140,734.74

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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.