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Finding the Fourth Proportional to 92,045.40, 138,049.20 and 25,468.80

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Solution

The fourth proportional to 92,045.40, 138,049.20 and 25,468.80 is: 38,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,045.40 : 138,049.20 = 25,468.80 : x
  2. Step 2: Convert to fraction form
    92,045.40/138,049.20 = 25,468.80/x
  3. Step 3: Cross multiply
    92,045.40x = 138,049.20 × 25,468.80
  4. Step 4: Simplify right side
    92,045.40x = 3,515,947,464.96
  5. Step 5: Solve for x
    x = 3,515,947,464.96/92,045.40
  6. Step 6: Final answer
    x = 38,197.97

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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.