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Finding the Fourth Proportional to 109,963.80, 164,924.10 and 36,091.80

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Solution

The fourth proportional to 109,963.80, 164,924.10 and 36,091.80 is: 54,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,963.80 : 164,924.10 = 36,091.80 : x
  2. Step 2: Convert to fraction form
    109,963.80/164,924.10 = 36,091.80/x
  3. Step 3: Cross multiply
    109,963.80x = 164,924.10 × 36,091.80
  4. Step 4: Simplify right side
    109,963.80x = 5,952,407,632.38
  5. Step 5: Solve for x
    x = 5,952,407,632.38/109,963.80
  6. Step 6: Final answer
    x = 54,130.61

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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.