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Finding the Fourth Proportional to 360,920.40, 541,429.20 and 124,335.60

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Solution

The fourth proportional to 360,920.40, 541,429.20 and 124,335.60 is: 186,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,920.40 : 541,429.20 = 124,335.60 : x
  2. Step 2: Convert to fraction form
    360,920.40/541,429.20 = 124,335.60/x
  3. Step 3: Cross multiply
    360,920.40x = 541,429.20 × 124,335.60
  4. Step 4: Simplify right side
    360,920.40x = 67,318,924,439.52
  5. Step 5: Solve for x
    x = 67,318,924,439.52/360,920.40
  6. Step 6: Final answer
    x = 186,520.14

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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.