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Finding the Fourth Proportional to 73,126.75, 109,690.14 and 26,379.62

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Solution

The fourth proportional to 73,126.75, 109,690.14 and 26,379.62 is: 39,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,126.75 : 109,690.14 = 26,379.62 : x
  2. Step 2: Convert to fraction form
    73,126.75/109,690.14 = 26,379.62/x
  3. Step 3: Cross multiply
    73,126.75x = 109,690.14 × 26,379.62
  4. Step 4: Simplify right side
    73,126.75x = 2,893,584,210.95
  5. Step 5: Solve for x
    x = 2,893,584,210.95/73,126.75
  6. Step 6: Final answer
    x = 39,569.44

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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.