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Finding the Fourth Proportional to 92,342.67, 138,505.37 and 39,742.35

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Solution

The fourth proportional to 92,342.67, 138,505.37 and 39,742.35 is: 59,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,342.67 : 138,505.37 = 39,742.35 : x
  2. Step 2: Convert to fraction form
    92,342.67/138,505.37 = 39,742.35/x
  3. Step 3: Cross multiply
    92,342.67x = 138,505.37 × 39,742.35
  4. Step 4: Simplify right side
    92,342.67x = 5,504,528,692.71
  5. Step 5: Solve for x
    x = 5,504,528,692.71/92,342.67
  6. Step 6: Final answer
    x = 59,609.81

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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.