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Finding the Fourth Proportional to 63,188.56, 87,203.40 and 41,931.60

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Solution

The fourth proportional to 63,188.56, 87,203.40 and 41,931.60 is: 57,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,188.56 : 87,203.40 = 41,931.60 : x
  2. Step 2: Convert to fraction form
    63,188.56/87,203.40 = 41,931.60/x
  3. Step 3: Cross multiply
    63,188.56x = 87,203.40 × 41,931.60
  4. Step 4: Simplify right side
    63,188.56x = 3,656,578,087.44
  5. Step 5: Solve for x
    x = 3,656,578,087.44/63,188.56
  6. Step 6: Final answer
    x = 57,867.72

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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.