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Finding the Fourth Proportional to 54,302.80, 74,972.84 and 44,255.28

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Solution

The fourth proportional to 54,302.80, 74,972.84 and 44,255.28 is: 61,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.80 : 74,972.84 = 44,255.28 : x
  2. Step 2: Convert to fraction form
    54,302.80/74,972.84 = 44,255.28/x
  3. Step 3: Cross multiply
    54,302.80x = 74,972.84 × 44,255.28
  4. Step 4: Simplify right side
    54,302.80x = 3,317,944,026.60
  5. Step 5: Solve for x
    x = 3,317,944,026.60/54,302.80
  6. Step 6: Final answer
    x = 61,100.79

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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.