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Finding the Fourth Proportional to 84,105.66, 125,953.54 and 55,625.26

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Solution

The fourth proportional to 84,105.66, 125,953.54 and 55,625.26 is: 83,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,105.66 : 125,953.54 = 55,625.26 : x
  2. Step 2: Convert to fraction form
    84,105.66/125,953.54 = 55,625.26/x
  3. Step 3: Cross multiply
    84,105.66x = 125,953.54 × 55,625.26
  4. Step 4: Simplify right side
    84,105.66x = 7,006,198,146.69
  5. Step 5: Solve for x
    x = 7,006,198,146.69/84,105.66
  6. Step 6: Final answer
    x = 83,302.34

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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.