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Finding the Fourth Proportional to 73,081.88, 109,625.90 and 23,160.88

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Solution

The fourth proportional to 73,081.88, 109,625.90 and 23,160.88 is: 34,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.88 : 109,625.90 = 23,160.88 : x
  2. Step 2: Convert to fraction form
    73,081.88/109,625.90 = 23,160.88/x
  3. Step 3: Cross multiply
    73,081.88x = 109,625.90 × 23,160.88
  4. Step 4: Simplify right side
    73,081.88x = 2,539,032,314.79
  5. Step 5: Solve for x
    x = 2,539,032,314.79/73,081.88
  6. Step 6: Final answer
    x = 34,742.30

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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.