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Finding the Fourth Proportional to 87,359.40, 131,039.10 and 24,179.40

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Solution

The fourth proportional to 87,359.40, 131,039.10 and 24,179.40 is: 36,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,359.40 : 131,039.10 = 24,179.40 : x
  2. Step 2: Convert to fraction form
    87,359.40/131,039.10 = 24,179.40/x
  3. Step 3: Cross multiply
    87,359.40x = 131,039.10 × 24,179.40
  4. Step 4: Simplify right side
    87,359.40x = 3,168,446,814.54
  5. Step 5: Solve for x
    x = 3,168,446,814.54/87,359.40
  6. Step 6: Final answer
    x = 36,269.10

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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.