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Finding the Fourth Proportional to 221,363.38, 332,087.74 and 71,640.82

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Solution

The fourth proportional to 221,363.38, 332,087.74 and 71,640.82 is: 107,475.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,363.38 : 332,087.74 = 71,640.82 : x
  2. Step 2: Convert to fraction form
    221,363.38/332,087.74 = 71,640.82/x
  3. Step 3: Cross multiply
    221,363.38x = 332,087.74 × 71,640.82
  4. Step 4: Simplify right side
    221,363.38x = 23,791,038,005.55
  5. Step 5: Solve for x
    x = 23,791,038,005.55/221,363.38
  6. Step 6: Final answer
    x = 107,475.04

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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.