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Finding the Fourth Proportional to 63,918.75, 88,208.34 and 36,687.60

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Solution

The fourth proportional to 63,918.75, 88,208.34 and 36,687.60 is: 50,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,918.75 : 88,208.34 = 36,687.60 : x
  2. Step 2: Convert to fraction form
    63,918.75/88,208.34 = 36,687.60/x
  3. Step 3: Cross multiply
    63,918.75x = 88,208.34 × 36,687.60
  4. Step 4: Simplify right side
    63,918.75x = 3,236,152,294.58
  5. Step 5: Solve for x
    x = 3,236,152,294.58/63,918.75
  6. Step 6: Final answer
    x = 50,629.15

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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.