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Finding the Fourth Proportional to 61,672.33, 85,107.90 and 33,378.04

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Solution

The fourth proportional to 61,672.33, 85,107.90 and 33,378.04 is: 46,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,672.33 : 85,107.90 = 33,378.04 : x
  2. Step 2: Convert to fraction form
    61,672.33/85,107.90 = 33,378.04/x
  3. Step 3: Cross multiply
    61,672.33x = 85,107.90 × 33,378.04
  4. Step 4: Simplify right side
    61,672.33x = 2,840,734,890.52
  5. Step 5: Solve for x
    x = 2,840,734,890.52/61,672.33
  6. Step 6: Final answer
    x = 46,061.74

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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.