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Finding the Fourth Proportional to 503,957,344.80, 755,936,017.20 and 140,451,700.80

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Solution

The fourth proportional to 503,957,344.80, 755,936,017.20 and 140,451,700.80 is: 210,677,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,957,344.80 : 755,936,017.20 = 140,451,700.80 : x
  2. Step 2: Convert to fraction form
    503,957,344.80/755,936,017.20 = 140,451,700.80/x
  3. Step 3: Cross multiply
    503,957,344.80x = 755,936,017.20 × 140,451,700.80
  4. Step 4: Simplify right side
    503,957,344.80x = 106,172,499,311,718,064
  5. Step 5: Solve for x
    x = 106,172,499,311,718,064/503,957,344.80
  6. Step 6: Final answer
    x = 210,677,551.20

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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.