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Finding the Fourth Proportional to 89,756.67, 123,863.52 and 49,470.51

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Solution

The fourth proportional to 89,756.67, 123,863.52 and 49,470.51 is: 68,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,756.67 : 123,863.52 = 49,470.51 : x
  2. Step 2: Convert to fraction form
    89,756.67/123,863.52 = 49,470.51/x
  3. Step 3: Cross multiply
    89,756.67x = 123,863.52 × 49,470.51
  4. Step 4: Simplify right side
    89,756.67x = 6,127,591,504.80
  5. Step 5: Solve for x
    x = 6,127,591,504.80/89,756.67
  6. Step 6: Final answer
    x = 68,268.93

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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.