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Finding the Fourth Proportional to 232,721.20, 349,114.20 and 99,600.40

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Solution

The fourth proportional to 232,721.20, 349,114.20 and 99,600.40 is: 149,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,721.20 : 349,114.20 = 99,600.40 : x
  2. Step 2: Convert to fraction form
    232,721.20/349,114.20 = 99,600.40/x
  3. Step 3: Cross multiply
    232,721.20x = 349,114.20 × 99,600.40
  4. Step 4: Simplify right side
    232,721.20x = 34,771,913,965.68
  5. Step 5: Solve for x
    x = 34,771,913,965.68/232,721.20
  6. Step 6: Final answer
    x = 149,414.47

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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.