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Finding the Fourth Proportional to 360,920.80, 541,454.10 and 124,287.40

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Solution

The fourth proportional to 360,920.80, 541,454.10 and 124,287.40 is: 186,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,920.80 : 541,454.10 = 124,287.40 : x
  2. Step 2: Convert to fraction form
    360,920.80/541,454.10 = 124,287.40/x
  3. Step 3: Cross multiply
    360,920.80x = 541,454.10 × 124,287.40
  4. Step 4: Simplify right side
    360,920.80x = 67,295,922,308.34
  5. Step 5: Solve for x
    x = 67,295,922,308.34/360,920.80
  6. Step 6: Final answer
    x = 186,456.20

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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.