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Finding the Fourth Proportional to 65,388.88, 97,944.11 and 49,417.97

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Solution

The fourth proportional to 65,388.88, 97,944.11 and 49,417.97 is: 74,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,388.88 : 97,944.11 = 49,417.97 : x
  2. Step 2: Convert to fraction form
    65,388.88/97,944.11 = 49,417.97/x
  3. Step 3: Cross multiply
    65,388.88x = 97,944.11 × 49,417.97
  4. Step 4: Simplify right side
    65,388.88x = 4,840,198,842.57
  5. Step 5: Solve for x
    x = 4,840,198,842.57/65,388.88
  6. Step 6: Final answer
    x = 74,021.75

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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.