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Finding the Fourth Proportional to 89,759.67, 123,867.68 and 49,473.51

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Solution

The fourth proportional to 89,759.67, 123,867.68 and 49,473.51 is: 68,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,759.67 : 123,867.68 = 49,473.51 : x
  2. Step 2: Convert to fraction form
    89,759.67/123,867.68 = 49,473.51/x
  3. Step 3: Cross multiply
    89,759.67x = 123,867.68 × 49,473.51
  4. Step 4: Simplify right side
    89,759.67x = 6,128,168,657.79
  5. Step 5: Solve for x
    x = 6,128,168,657.79/89,759.67
  6. Step 6: Final answer
    x = 68,273.07

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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.