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Finding the Fourth Proportional to 73,111.95, 109,687.05 and 25,725.12

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Solution

The fourth proportional to 73,111.95, 109,687.05 and 25,725.12 is: 38,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,111.95 : 109,687.05 = 25,725.12 : x
  2. Step 2: Convert to fraction form
    73,111.95/109,687.05 = 25,725.12/x
  3. Step 3: Cross multiply
    73,111.95x = 109,687.05 × 25,725.12
  4. Step 4: Simplify right side
    73,111.95x = 2,821,712,523.70
  5. Step 5: Solve for x
    x = 2,821,712,523.70/73,111.95
  6. Step 6: Final answer
    x = 38,594.41

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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.