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Finding the Fourth Proportional to 64,459.55, 88,961.87 and 36,169.49

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Solution

The fourth proportional to 64,459.55, 88,961.87 and 36,169.49 is: 49,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,459.55 : 88,961.87 = 36,169.49 : x
  2. Step 2: Convert to fraction form
    64,459.55/88,961.87 = 36,169.49/x
  3. Step 3: Cross multiply
    64,459.55x = 88,961.87 × 36,169.49
  4. Step 4: Simplify right side
    64,459.55x = 3,217,705,780.17
  5. Step 5: Solve for x
    x = 3,217,705,780.17/64,459.55
  6. Step 6: Final answer
    x = 49,918.21

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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.