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Finding the Fourth Proportional to 74,434.95, 111,620.09 and 27,034.29

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Solution

The fourth proportional to 74,434.95, 111,620.09 and 27,034.29 is: 40,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,434.95 : 111,620.09 = 27,034.29 : x
  2. Step 2: Convert to fraction form
    74,434.95/111,620.09 = 27,034.29/x
  3. Step 3: Cross multiply
    74,434.95x = 111,620.09 × 27,034.29
  4. Step 4: Simplify right side
    74,434.95x = 3,017,569,950.47
  5. Step 5: Solve for x
    x = 3,017,569,950.47/74,434.95
  6. Step 6: Final answer
    x = 40,539.69

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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.