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Finding the Fourth Proportional to 98,191.20, 147,286.80 and 24,319.20

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Solution

The fourth proportional to 98,191.20, 147,286.80 and 24,319.20 is: 36,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,191.20 : 147,286.80 = 24,319.20 : x
  2. Step 2: Convert to fraction form
    98,191.20/147,286.80 = 24,319.20/x
  3. Step 3: Cross multiply
    98,191.20x = 147,286.80 × 24,319.20
  4. Step 4: Simplify right side
    98,191.20x = 3,581,897,146.56
  5. Step 5: Solve for x
    x = 3,581,897,146.56/98,191.20
  6. Step 6: Final answer
    x = 36,478.80

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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.