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Finding the Fourth Proportional to 67,302.80, 100,939.80 and 29,862.80

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Solution

The fourth proportional to 67,302.80, 100,939.80 and 29,862.80 is: 44,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,302.80 : 100,939.80 = 29,862.80 : x
  2. Step 2: Convert to fraction form
    67,302.80/100,939.80 = 29,862.80/x
  3. Step 3: Cross multiply
    67,302.80x = 100,939.80 × 29,862.80
  4. Step 4: Simplify right side
    67,302.80x = 3,014,345,059.44
  5. Step 5: Solve for x
    x = 3,014,345,059.44/67,302.80
  6. Step 6: Final answer
    x = 44,787.81

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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.