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Finding the Fourth Proportional to 124,609.64, 186,723.03 and 84,576.56

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Solution

The fourth proportional to 124,609.64, 186,723.03 and 84,576.56 is: 126,734.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.64 : 186,723.03 = 84,576.56 : x
  2. Step 2: Convert to fraction form
    124,609.64/186,723.03 = 84,576.56/x
  3. Step 3: Cross multiply
    124,609.64x = 186,723.03 × 84,576.56
  4. Step 4: Simplify right side
    124,609.64x = 15,792,391,550.18
  5. Step 5: Solve for x
    x = 15,792,391,550.18/124,609.64
  6. Step 6: Final answer
    x = 126,734.91

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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.