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Finding the Fourth Proportional to 61,879.56, 92,609.10 and 38,202.18

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Solution

The fourth proportional to 61,879.56, 92,609.10 and 38,202.18 is: 57,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.56 : 92,609.10 = 38,202.18 : x
  2. Step 2: Convert to fraction form
    61,879.56/92,609.10 = 38,202.18/x
  3. Step 3: Cross multiply
    61,879.56x = 92,609.10 × 38,202.18
  4. Step 4: Simplify right side
    61,879.56x = 3,537,869,507.84
  5. Step 5: Solve for x
    x = 3,537,869,507.84/61,879.56
  6. Step 6: Final answer
    x = 57,173.48

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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.