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Finding the Fourth Proportional to 69,659.76, 96,159.90 and 47,029.41

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Solution

The fourth proportional to 69,659.76, 96,159.90 and 47,029.41 is: 64,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,659.76 : 96,159.90 = 47,029.41 : x
  2. Step 2: Convert to fraction form
    69,659.76/96,159.90 = 47,029.41/x
  3. Step 3: Cross multiply
    69,659.76x = 96,159.90 × 47,029.41
  4. Step 4: Simplify right side
    69,659.76x = 4,522,342,764.29
  5. Step 5: Solve for x
    x = 4,522,342,764.29/69,659.76
  6. Step 6: Final answer
    x = 64,920.44

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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.