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Finding the Fourth Proportional to 74,686.44, 103,062.48 and 44,474

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Solution

The fourth proportional to 74,686.44, 103,062.48 and 44,474 is: 61,371.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.44 : 103,062.48 = 44,474 : x
  2. Step 2: Convert to fraction form
    74,686.44/103,062.48 = 44,474/x
  3. Step 3: Cross multiply
    74,686.44x = 103,062.48 × 44,474
  4. Step 4: Simplify right side
    74,686.44x = 4,583,600,735.52
  5. Step 5: Solve for x
    x = 4,583,600,735.52/74,686.44
  6. Step 6: Final answer
    x = 61,371.26

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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.