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Finding the Fourth Proportional to 363,794.80, 545,559.16 and 139,044.10

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Solution

The fourth proportional to 363,794.80, 545,559.16 and 139,044.10 is: 208,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,794.80 : 545,559.16 = 139,044.10 : x
  2. Step 2: Convert to fraction form
    363,794.80/545,559.16 = 139,044.10/x
  3. Step 3: Cross multiply
    363,794.80x = 545,559.16 × 139,044.10
  4. Step 4: Simplify right side
    363,794.80x = 75,856,782,398.96
  5. Step 5: Solve for x
    x = 75,856,782,398.96/363,794.80
  6. Step 6: Final answer
    x = 208,515.30

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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.