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Finding the Fourth Proportional to 114,034.54, 171,072.30 and 39,135.28

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Solution

The fourth proportional to 114,034.54, 171,072.30 and 39,135.28 is: 58,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,034.54 : 171,072.30 = 39,135.28 : x
  2. Step 2: Convert to fraction form
    114,034.54/171,072.30 = 39,135.28/x
  3. Step 3: Cross multiply
    114,034.54x = 171,072.30 × 39,135.28
  4. Step 4: Simplify right side
    114,034.54x = 6,694,962,360.74
  5. Step 5: Solve for x
    x = 6,694,962,360.74/114,034.54
  6. Step 6: Final answer
    x = 58,709.95

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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.