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Finding the Fourth Proportional to 74,747.84, 103,148.52 and 44,553.20

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Solution

The fourth proportional to 74,747.84, 103,148.52 and 44,553.20 is: 61,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.84 : 103,148.52 = 44,553.20 : x
  2. Step 2: Convert to fraction form
    74,747.84/103,148.52 = 44,553.20/x
  3. Step 3: Cross multiply
    74,747.84x = 103,148.52 × 44,553.20
  4. Step 4: Simplify right side
    74,747.84x = 4,595,596,641.26
  5. Step 5: Solve for x
    x = 4,595,596,641.26/74,747.84
  6. Step 6: Final answer
    x = 61,481.33

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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.