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Finding the Fourth Proportional to 79,642.95, 119,471.86 and 26,335.13

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Solution

The fourth proportional to 79,642.95, 119,471.86 and 26,335.13 is: 39,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,642.95 : 119,471.86 = 26,335.13 : x
  2. Step 2: Convert to fraction form
    79,642.95/119,471.86 = 26,335.13/x
  3. Step 3: Cross multiply
    79,642.95x = 119,471.86 × 26,335.13
  4. Step 4: Simplify right side
    79,642.95x = 3,146,306,400.00
  5. Step 5: Solve for x
    x = 3,146,306,400.00/79,642.95
  6. Step 6: Final answer
    x = 39,505.15

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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.