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Finding the Fourth Proportional to 69,459.60, 95,863.32 and 39,254.70

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Solution

The fourth proportional to 69,459.60, 95,863.32 and 39,254.70 is: 54,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.60 : 95,863.32 = 39,254.70 : x
  2. Step 2: Convert to fraction form
    69,459.60/95,863.32 = 39,254.70/x
  3. Step 3: Cross multiply
    69,459.60x = 95,863.32 × 39,254.70
  4. Step 4: Simplify right side
    69,459.60x = 3,763,085,867.60
  5. Step 5: Solve for x
    x = 3,763,085,867.60/69,459.60
  6. Step 6: Final answer
    x = 54,176.61

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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.