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Finding the Fourth Proportional to 71,323.70, 106,945.05 and 26,951.90

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Solution

The fourth proportional to 71,323.70, 106,945.05 and 26,951.90 is: 40,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,323.70 : 106,945.05 = 26,951.90 : x
  2. Step 2: Convert to fraction form
    71,323.70/106,945.05 = 26,951.90/x
  3. Step 3: Cross multiply
    71,323.70x = 106,945.05 × 26,951.90
  4. Step 4: Simplify right side
    71,323.70x = 2,882,372,293.10
  5. Step 5: Solve for x
    x = 2,882,372,293.10/71,323.70
  6. Step 6: Final answer
    x = 40,412.55

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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.