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Finding the Fourth Proportional to 115,761.54, 173,645.94 and 39,859.26

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Solution

The fourth proportional to 115,761.54, 173,645.94 and 39,859.26 is: 59,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,761.54 : 173,645.94 = 39,859.26 : x
  2. Step 2: Convert to fraction form
    115,761.54/173,645.94 = 39,859.26/x
  3. Step 3: Cross multiply
    115,761.54x = 173,645.94 × 39,859.26
  4. Step 4: Simplify right side
    115,761.54x = 6,921,398,670.40
  5. Step 5: Solve for x
    x = 6,921,398,670.40/115,761.54
  6. Step 6: Final answer
    x = 59,790.14

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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.