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Finding the Fourth Proportional to 217,158.22, 325,780.80 and 75,008.70

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Solution

The fourth proportional to 217,158.22, 325,780.80 and 75,008.70 is: 112,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,158.22 : 325,780.80 = 75,008.70 : x
  2. Step 2: Convert to fraction form
    217,158.22/325,780.80 = 75,008.70/x
  3. Step 3: Cross multiply
    217,158.22x = 325,780.80 × 75,008.70
  4. Step 4: Simplify right side
    217,158.22x = 24,436,394,292.96
  5. Step 5: Solve for x
    x = 24,436,394,292.96/217,158.22
  6. Step 6: Final answer
    x = 112,528.06

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1.5x scale

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.