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Finding the Fourth Proportional to 69,179.40, 103,702.68 and 44,148.78

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Solution

The fourth proportional to 69,179.40, 103,702.68 and 44,148.78 is: 66,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,179.40 : 103,702.68 = 44,148.78 : x
  2. Step 2: Convert to fraction form
    69,179.40/103,702.68 = 44,148.78/x
  3. Step 3: Cross multiply
    69,179.40x = 103,702.68 × 44,148.78
  4. Step 4: Simplify right side
    69,179.40x = 4,578,346,804.73
  5. Step 5: Solve for x
    x = 4,578,346,804.73/69,179.40
  6. Step 6: Final answer
    x = 66,180.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.