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Finding the Fourth Proportional to 71,268.60, 106,899.03 and 26,894.28

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Solution

The fourth proportional to 71,268.60, 106,899.03 and 26,894.28 is: 40,339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,268.60 : 106,899.03 = 26,894.28 : x
  2. Step 2: Convert to fraction form
    71,268.60/106,899.03 = 26,894.28/x
  3. Step 3: Cross multiply
    71,268.60x = 106,899.03 × 26,894.28
  4. Step 4: Simplify right side
    71,268.60x = 2,874,972,444.55
  5. Step 5: Solve for x
    x = 2,874,972,444.55/71,268.60
  6. Step 6: Final answer
    x = 40,339.96

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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.