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Finding the Fourth Proportional to 159,651.18, 220,333.41 and 91,677.06

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Solution

The fourth proportional to 159,651.18, 220,333.41 and 91,677.06 is: 126,522.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.18 : 220,333.41 = 91,677.06 : x
  2. Step 2: Convert to fraction form
    159,651.18/220,333.41 = 91,677.06/x
  3. Step 3: Cross multiply
    159,651.18x = 220,333.41 × 91,677.06
  4. Step 4: Simplify right side
    159,651.18x = 20,199,519,248.57
  5. Step 5: Solve for x
    x = 20,199,519,248.57/159,651.18
  6. Step 6: Final answer
    x = 126,522.83

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1.5x scale

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.