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Finding the Fourth Proportional to 101,575.56, 140,028.18 and 71,266.98

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Solution

The fourth proportional to 101,575.56, 140,028.18 and 71,266.98 is: 98,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,575.56 : 140,028.18 = 71,266.98 : x
  2. Step 2: Convert to fraction form
    101,575.56/140,028.18 = 71,266.98/x
  3. Step 3: Cross multiply
    101,575.56x = 140,028.18 × 71,266.98
  4. Step 4: Simplify right side
    101,575.56x = 9,979,385,503.50
  5. Step 5: Solve for x
    x = 9,979,385,503.50/101,575.56
  6. Step 6: Final answer
    x = 98,245.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.