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Finding the Fourth Proportional to 74,413,605.80, 111,620,408.70 and 53,846,839.10

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Solution

The fourth proportional to 74,413,605.80, 111,620,408.70 and 53,846,839.10 is: 80,770,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,413,605.80 : 111,620,408.70 = 53,846,839.10 : x
  2. Step 2: Convert to fraction form
    74,413,605.80/111,620,408.70 = 53,846,839.10/x
  3. Step 3: Cross multiply
    74,413,605.80x = 111,620,408.70 × 53,846,839.10
  4. Step 4: Simplify right side
    74,413,605.80x = 6,010,406,187,545,140
  5. Step 5: Solve for x
    x = 6,010,406,187,545,140/74,413,605.80
  6. Step 6: Final answer
    x = 80,770,258.65

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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.