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Finding the Fourth Proportional to 133,060,689.20, 199,620,064.20 and 75,580,497.20

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Solution

The fourth proportional to 133,060,689.20, 199,620,064.20 and 75,580,497.20 is: 113,387,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,060,689.20 : 199,620,064.20 = 75,580,497.20 : x
  2. Step 2: Convert to fraction form
    133,060,689.20/199,620,064.20 = 75,580,497.20/x
  3. Step 3: Cross multiply
    133,060,689.20x = 199,620,064.20 × 75,580,497.20
  4. Step 4: Simplify right side
    133,060,689.20x = 15,087,383,703,331,920
  5. Step 5: Solve for x
    x = 15,087,383,703,331,920/133,060,689.20
  6. Step 6: Final answer
    x = 113,387,235.51

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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.