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Finding the Fourth Proportional to 74,959.83, 103,429.31 and 44,735.49

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Solution

The fourth proportional to 74,959.83, 103,429.31 and 44,735.49 is: 61,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,959.83 : 103,429.31 = 44,735.49 : x
  2. Step 2: Convert to fraction form
    74,959.83/103,429.31 = 44,735.49/x
  3. Step 3: Cross multiply
    74,959.83x = 103,429.31 × 44,735.49
  4. Step 4: Simplify right side
    74,959.83x = 4,626,960,639.53
  5. Step 5: Solve for x
    x = 4,626,960,639.53/74,959.83
  6. Step 6: Final answer
    x = 61,725.87

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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.