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Finding the Fourth Proportional to 361,080.40, 541,474.80 and 124,301.20

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Solution

The fourth proportional to 361,080.40, 541,474.80 and 124,301.20 is: 186,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,080.40 : 541,474.80 = 124,301.20 : x
  2. Step 2: Convert to fraction form
    361,080.40/541,474.80 = 124,301.20/x
  3. Step 3: Cross multiply
    361,080.40x = 541,474.80 × 124,301.20
  4. Step 4: Simplify right side
    361,080.40x = 67,305,967,409.76
  5. Step 5: Solve for x
    x = 67,305,967,409.76/361,080.40
  6. Step 6: Final answer
    x = 186,401.61

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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.