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Finding the Fourth Proportional to 232,711.20, 349,099.20 and 99,590.40

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Solution

The fourth proportional to 232,711.20, 349,099.20 and 99,590.40 is: 149,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,711.20 : 349,099.20 = 99,590.40 : x
  2. Step 2: Convert to fraction form
    232,711.20/349,099.20 = 99,590.40/x
  3. Step 3: Cross multiply
    232,711.20x = 349,099.20 × 99,590.40
  4. Step 4: Simplify right side
    232,711.20x = 34,766,928,967.68
  5. Step 5: Solve for x
    x = 34,766,928,967.68/232,711.20
  6. Step 6: Final answer
    x = 149,399.47

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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.