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Finding the Fourth Proportional to 79,010.91, 109,092.18 and 48,837.60

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Solution

The fourth proportional to 79,010.91, 109,092.18 and 48,837.60 is: 67,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,010.91 : 109,092.18 = 48,837.60 : x
  2. Step 2: Convert to fraction form
    79,010.91/109,092.18 = 48,837.60/x
  3. Step 3: Cross multiply
    79,010.91x = 109,092.18 × 48,837.60
  4. Step 4: Simplify right side
    79,010.91x = 5,327,800,249.97
  5. Step 5: Solve for x
    x = 5,327,800,249.97/79,010.91
  6. Step 6: Final answer
    x = 67,431.20

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1.5x scale

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.