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Finding the Fourth Proportional to 69,641.76, 96,104.64 and 37,811.88

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Solution

The fourth proportional to 69,641.76, 96,104.64 and 37,811.88 is: 52,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.76 : 96,104.64 = 37,811.88 : x
  2. Step 2: Convert to fraction form
    69,641.76/96,104.64 = 37,811.88/x
  3. Step 3: Cross multiply
    69,641.76x = 96,104.64 × 37,811.88
  4. Step 4: Simplify right side
    69,641.76x = 3,633,897,115.12
  5. Step 5: Solve for x
    x = 3,633,897,115.12/69,641.76
  6. Step 6: Final answer
    x = 52,179.86

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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.