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Finding the Fourth Proportional to 361,003.68, 541,506.60 and 124,343.28

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Solution

The fourth proportional to 361,003.68, 541,506.60 and 124,343.28 is: 186,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,003.68 : 541,506.60 = 124,343.28 : x
  2. Step 2: Convert to fraction form
    361,003.68/541,506.60 = 124,343.28/x
  3. Step 3: Cross multiply
    361,003.68x = 541,506.60 × 124,343.28
  4. Step 4: Simplify right side
    361,003.68x = 67,332,706,785.65
  5. Step 5: Solve for x
    x = 67,332,706,785.65/361,003.68
  6. Step 6: Final answer
    x = 186,515.29

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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.