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Finding the Fourth Proportional to 61,040,728.40, 91,561,092.60 and 49,561,602.80

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Solution

The fourth proportional to 61,040,728.40, 91,561,092.60 and 49,561,602.80 is: 74,342,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,040,728.40 : 91,561,092.60 = 49,561,602.80 : x
  2. Step 2: Convert to fraction form
    61,040,728.40/91,561,092.60 = 49,561,602.80/x
  3. Step 3: Cross multiply
    61,040,728.40x = 91,561,092.60 × 49,561,602.80
  4. Step 4: Simplify right side
    61,040,728.40x = 4,537,914,503,375,219
  5. Step 5: Solve for x
    x = 4,537,914,503,375,219/61,040,728.40
  6. Step 6: Final answer
    x = 74,342,404.20

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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.