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Finding the Fourth Proportional to 360,928.80, 541,393.20 and 183,781.80

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Solution

The fourth proportional to 360,928.80, 541,393.20 and 183,781.80 is: 275,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,928.80 : 541,393.20 = 183,781.80 : x
  2. Step 2: Convert to fraction form
    360,928.80/541,393.20 = 183,781.80/x
  3. Step 3: Cross multiply
    360,928.80x = 541,393.20 × 183,781.80
  4. Step 4: Simplify right side
    360,928.80x = 99,498,216,803.76
  5. Step 5: Solve for x
    x = 99,498,216,803.76/360,928.80
  6. Step 6: Final answer
    x = 275,672.70

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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.