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Finding the Fourth Proportional to 74,391,863.88, 111,481,822.72 and 54,807,069.72

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Solution

The fourth proportional to 74,391,863.88, 111,481,822.72 and 54,807,069.72 is: 82,132,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,391,863.88 : 111,481,822.72 = 54,807,069.72 : x
  2. Step 2: Convert to fraction form
    74,391,863.88/111,481,822.72 = 54,807,069.72/x
  3. Step 3: Cross multiply
    74,391,863.88x = 111,481,822.72 × 54,807,069.72
  4. Step 4: Simplify right side
    74,391,863.88x = 6,109,992,030,327,720
  5. Step 5: Solve for x
    x = 6,109,992,030,327,720/74,391,863.88
  6. Step 6: Final answer
    x = 82,132,530.52

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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.