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Finding the Fourth Proportional to 99,679.20, 149,474.91 and 36,482.90

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Solution

The fourth proportional to 99,679.20, 149,474.91 and 36,482.90 is: 54,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,679.20 : 149,474.91 = 36,482.90 : x
  2. Step 2: Convert to fraction form
    99,679.20/149,474.91 = 36,482.90/x
  3. Step 3: Cross multiply
    99,679.20x = 149,474.91 × 36,482.90
  4. Step 4: Simplify right side
    99,679.20x = 5,453,278,194.04
  5. Step 5: Solve for x
    x = 5,453,278,194.04/99,679.20
  6. Step 6: Final answer
    x = 54,708.29

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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.