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Finding the Fourth Proportional to 64,494.34, 88,997.31 and 36,194.56

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Solution

The fourth proportional to 64,494.34, 88,997.31 and 36,194.56 is: 49,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.34 : 88,997.31 = 36,194.56 : x
  2. Step 2: Convert to fraction form
    64,494.34/88,997.31 = 36,194.56/x
  3. Step 3: Cross multiply
    64,494.34x = 88,997.31 × 36,194.56
  4. Step 4: Simplify right side
    64,494.34x = 3,221,218,476.63
  5. Step 5: Solve for x
    x = 3,221,218,476.63/64,494.34
  6. Step 6: Final answer
    x = 49,945.75

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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.