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Finding the Fourth Proportional to 79,874.20, 119,811.30 and 24,470.20

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Solution

The fourth proportional to 79,874.20, 119,811.30 and 24,470.20 is: 36,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,874.20 : 119,811.30 = 24,470.20 : x
  2. Step 2: Convert to fraction form
    79,874.20/119,811.30 = 24,470.20/x
  3. Step 3: Cross multiply
    79,874.20x = 119,811.30 × 24,470.20
  4. Step 4: Simplify right side
    79,874.20x = 2,931,806,473.26
  5. Step 5: Solve for x
    x = 2,931,806,473.26/79,874.20
  6. Step 6: Final answer
    x = 36,705.30

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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.