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Finding the Fourth Proportional to 115,575.68, 173,501.76 and 68,850.56

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Solution

The fourth proportional to 115,575.68, 173,501.76 and 68,850.56 is: 103,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,575.68 : 173,501.76 = 68,850.56 : x
  2. Step 2: Convert to fraction form
    115,575.68/173,501.76 = 68,850.56/x
  3. Step 3: Cross multiply
    115,575.68x = 173,501.76 × 68,850.56
  4. Step 4: Simplify right side
    115,575.68x = 11,945,693,336.99
  5. Step 5: Solve for x
    x = 11,945,693,336.99/115,575.68
  6. Step 6: Final answer
    x = 103,358.19

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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.