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Finding the Fourth Proportional to 61,140.56, 91,691.88 and 29,530.98

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Solution

The fourth proportional to 61,140.56, 91,691.88 and 29,530.98 is: 44,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,140.56 : 91,691.88 = 29,530.98 : x
  2. Step 2: Convert to fraction form
    61,140.56/91,691.88 = 29,530.98/x
  3. Step 3: Cross multiply
    61,140.56x = 91,691.88 × 29,530.98
  4. Step 4: Simplify right side
    61,140.56x = 2,707,751,074.44
  5. Step 5: Solve for x
    x = 2,707,751,074.44/61,140.56
  6. Step 6: Final answer
    x = 44,287.31

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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.