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Finding the Fourth Proportional to 75,147.60, 103,692.84 and 41,613.52

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Solution

The fourth proportional to 75,147.60, 103,692.84 and 41,613.52 is: 57,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.60 : 103,692.84 = 41,613.52 : x
  2. Step 2: Convert to fraction form
    75,147.60/103,692.84 = 41,613.52/x
  3. Step 3: Cross multiply
    75,147.60x = 103,692.84 × 41,613.52
  4. Step 4: Simplify right side
    75,147.60x = 4,315,024,071.20
  5. Step 5: Solve for x
    x = 4,315,024,071.20/75,147.60
  6. Step 6: Final answer
    x = 57,420.65

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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.