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Finding the Fourth Proportional to 115,645.54, 173,350.14 and 65,619.96

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Solution

The fourth proportional to 115,645.54, 173,350.14 and 65,619.96 is: 98,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,645.54 : 173,350.14 = 65,619.96 : x
  2. Step 2: Convert to fraction form
    115,645.54/173,350.14 = 65,619.96/x
  3. Step 3: Cross multiply
    115,645.54x = 173,350.14 × 65,619.96
  4. Step 4: Simplify right side
    115,645.54x = 11,375,229,252.79
  5. Step 5: Solve for x
    x = 11,375,229,252.79/115,645.54
  6. Step 6: Final answer
    x = 98,362.89

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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.