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Finding the Fourth Proportional to 74,489.63, 111,735.25 and 29,521.94

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Solution

The fourth proportional to 74,489.63, 111,735.25 and 29,521.94 is: 44,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,489.63 : 111,735.25 = 29,521.94 : x
  2. Step 2: Convert to fraction form
    74,489.63/111,735.25 = 29,521.94/x
  3. Step 3: Cross multiply
    74,489.63x = 111,735.25 × 29,521.94
  4. Step 4: Simplify right side
    74,489.63x = 3,298,640,713.90
  5. Step 5: Solve for x
    x = 3,298,640,713.90/74,489.63
  6. Step 6: Final answer
    x = 44,283.22

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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.