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Finding the Fourth Proportional to 67,987.15, 101,867.88 and 41,636.53

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Solution

The fourth proportional to 67,987.15, 101,867.88 and 41,636.53 is: 62,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,987.15 : 101,867.88 = 41,636.53 : x
  2. Step 2: Convert to fraction form
    67,987.15/101,867.88 = 41,636.53/x
  3. Step 3: Cross multiply
    67,987.15x = 101,867.88 × 41,636.53
  4. Step 4: Simplify right side
    67,987.15x = 4,241,425,090.92
  5. Step 5: Solve for x
    x = 4,241,425,090.92/67,987.15
  6. Step 6: Final answer
    x = 62,385.69

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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.