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Finding the Fourth Proportional to 109,906.80, 164,838.60 and 36,034.80

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Solution

The fourth proportional to 109,906.80, 164,838.60 and 36,034.80 is: 54,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,906.80 : 164,838.60 = 36,034.80 : x
  2. Step 2: Convert to fraction form
    109,906.80/164,838.60 = 36,034.80/x
  3. Step 3: Cross multiply
    109,906.80x = 164,838.60 × 36,034.80
  4. Step 4: Simplify right side
    109,906.80x = 5,939,925,983.28
  5. Step 5: Solve for x
    x = 5,939,925,983.28/109,906.80
  6. Step 6: Final answer
    x = 54,045.12

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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.