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Finding the Fourth Proportional to 49,219.70, 73,829.55 and 40,471.70

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Solution

The fourth proportional to 49,219.70, 73,829.55 and 40,471.70 is: 60,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,219.70 : 73,829.55 = 40,471.70 : x
  2. Step 2: Convert to fraction form
    49,219.70/73,829.55 = 40,471.70/x
  3. Step 3: Cross multiply
    49,219.70x = 73,829.55 × 40,471.70
  4. Step 4: Simplify right side
    49,219.70x = 2,988,007,398.74
  5. Step 5: Solve for x
    x = 2,988,007,398.74/49,219.70
  6. Step 6: Final answer
    x = 60,707.55

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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.