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Finding the Fourth Proportional to 64,231.44, 88,724.10 and 49,308.51

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Solution

The fourth proportional to 64,231.44, 88,724.10 and 49,308.51 is: 68,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,231.44 : 88,724.10 = 49,308.51 : x
  2. Step 2: Convert to fraction form
    64,231.44/88,724.10 = 49,308.51/x
  3. Step 3: Cross multiply
    64,231.44x = 88,724.10 × 49,308.51
  4. Step 4: Simplify right side
    64,231.44x = 4,374,853,172.09
  5. Step 5: Solve for x
    x = 4,374,853,172.09/64,231.44
  6. Step 6: Final answer
    x = 68,110.78

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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.