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Finding the Fourth Proportional to 69,865.64, 96,478.63 and 44,380.20

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Solution

The fourth proportional to 69,865.64, 96,478.63 and 44,380.20 is: 61,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,865.64 : 96,478.63 = 44,380.20 : x
  2. Step 2: Convert to fraction form
    69,865.64/96,478.63 = 44,380.20/x
  3. Step 3: Cross multiply
    69,865.64x = 96,478.63 × 44,380.20
  4. Step 4: Simplify right side
    69,865.64x = 4,281,741,145.97
  5. Step 5: Solve for x
    x = 4,281,741,145.97/69,865.64
  6. Step 6: Final answer
    x = 61,285.36

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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.