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Finding the Fourth Proportional to 69,434.58, 104,447.52 and 62,939.20

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Solution

The fourth proportional to 69,434.58, 104,447.52 and 62,939.20 is: 94,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,434.58 : 104,447.52 = 62,939.20 : x
  2. Step 2: Convert to fraction form
    69,434.58/104,447.52 = 62,939.20/x
  3. Step 3: Cross multiply
    69,434.58x = 104,447.52 × 62,939.20
  4. Step 4: Simplify right side
    69,434.58x = 6,573,843,350.78
  5. Step 5: Solve for x
    x = 6,573,843,350.78/69,434.58
  6. Step 6: Final answer
    x = 94,676.79

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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.