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Finding the Fourth Proportional to 123,893.44, 185,862.56 and 45,118.24

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Solution

The fourth proportional to 123,893.44, 185,862.56 and 45,118.24 is: 67,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,893.44 : 185,862.56 = 45,118.24 : x
  2. Step 2: Convert to fraction form
    123,893.44/185,862.56 = 45,118.24/x
  3. Step 3: Cross multiply
    123,893.44x = 185,862.56 × 45,118.24
  4. Step 4: Simplify right side
    123,893.44x = 8,385,791,589.09
  5. Step 5: Solve for x
    x = 8,385,791,589.09/123,893.44
  6. Step 6: Final answer
    x = 67,685.52

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1.5x scale

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.