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Finding the Fourth Proportional to 363,912.20, 545,868.30 and 249,750.80

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Solution

The fourth proportional to 363,912.20, 545,868.30 and 249,750.80 is: 374,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,912.20 : 545,868.30 = 249,750.80 : x
  2. Step 2: Convert to fraction form
    363,912.20/545,868.30 = 249,750.80/x
  3. Step 3: Cross multiply
    363,912.20x = 545,868.30 × 249,750.80
  4. Step 4: Simplify right side
    363,912.20x = 136,331,044,619.64
  5. Step 5: Solve for x
    x = 136,331,044,619.64/363,912.20
  6. Step 6: Final answer
    x = 374,626.20

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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.