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Finding the Fourth Proportional to 54,642.80, 81,879.12 and 34,610.02

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Solution

The fourth proportional to 54,642.80, 81,879.12 and 34,610.02 is: 51,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,642.80 : 81,879.12 = 34,610.02 : x
  2. Step 2: Convert to fraction form
    54,642.80/81,879.12 = 34,610.02/x
  3. Step 3: Cross multiply
    54,642.80x = 81,879.12 × 34,610.02
  4. Step 4: Simplify right side
    54,642.80x = 2,833,837,776.08
  5. Step 5: Solve for x
    x = 2,833,837,776.08/54,642.80
  6. Step 6: Final answer
    x = 51,861.14

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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.