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Finding the Fourth Proportional to 63,860.77, 88,109.40 and 41,212.90

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Solution

The fourth proportional to 63,860.77, 88,109.40 and 41,212.90 is: 56,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,860.77 : 88,109.40 = 41,212.90 : x
  2. Step 2: Convert to fraction form
    63,860.77/88,109.40 = 41,212.90/x
  3. Step 3: Cross multiply
    63,860.77x = 88,109.40 × 41,212.90
  4. Step 4: Simplify right side
    63,860.77x = 3,631,243,891.26
  5. Step 5: Solve for x
    x = 3,631,243,891.26/63,860.77
  6. Step 6: Final answer
    x = 56,861.89

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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.