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Finding the Fourth Proportional to 295,865,147.20, 443,797,720.80 and 123,465,686.80

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Solution

The fourth proportional to 295,865,147.20, 443,797,720.80 and 123,465,686.80 is: 185,198,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,865,147.20 : 443,797,720.80 = 123,465,686.80 : x
  2. Step 2: Convert to fraction form
    295,865,147.20/443,797,720.80 = 123,465,686.80/x
  3. Step 3: Cross multiply
    295,865,147.20x = 443,797,720.80 × 123,465,686.80
  4. Step 4: Simplify right side
    295,865,147.20x = 54,793,790,398,846,648
  5. Step 5: Solve for x
    x = 54,793,790,398,846,648/295,865,147.20
  6. Step 6: Final answer
    x = 185,198,530.20

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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.