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Finding the Fourth Proportional to 61,103.21, 84,320.91 and 35,607.92

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Solution

The fourth proportional to 61,103.21, 84,320.91 and 35,607.92 is: 49,138.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,103.21 : 84,320.91 = 35,607.92 : x
  2. Step 2: Convert to fraction form
    61,103.21/84,320.91 = 35,607.92/x
  3. Step 3: Cross multiply
    61,103.21x = 84,320.91 × 35,607.92
  4. Step 4: Simplify right side
    61,103.21x = 3,002,491,796.00
  5. Step 5: Solve for x
    x = 3,002,491,796.00/61,103.21
  6. Step 6: Final answer
    x = 49,138.04

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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.