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Finding the Fourth Proportional to 74,687.92, 103,047.22 and 44,449

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Solution

The fourth proportional to 74,687.92, 103,047.22 and 44,449 is: 61,326.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.92 : 103,047.22 = 44,449 : x
  2. Step 2: Convert to fraction form
    74,687.92/103,047.22 = 44,449/x
  3. Step 3: Cross multiply
    74,687.92x = 103,047.22 × 44,449
  4. Step 4: Simplify right side
    74,687.92x = 4,580,345,881.78
  5. Step 5: Solve for x
    x = 4,580,345,881.78/74,687.92
  6. Step 6: Final answer
    x = 61,326.46

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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.