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Finding the Fourth Proportional to 69,408.43, 104,155.47 and 27,281.11

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Solution

The fourth proportional to 69,408.43, 104,155.47 and 27,281.11 is: 40,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408.43 : 104,155.47 = 27,281.11 : x
  2. Step 2: Convert to fraction form
    69,408.43/104,155.47 = 27,281.11/x
  3. Step 3: Cross multiply
    69,408.43x = 104,155.47 × 27,281.11
  4. Step 4: Simplify right side
    69,408.43x = 2,841,476,834.17
  5. Step 5: Solve for x
    x = 2,841,476,834.17/69,408.43
  6. Step 6: Final answer
    x = 40,938.50

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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.