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Finding the Fourth Proportional to 111,877.98, 167,660.22 and 55,664.80

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Solution

The fourth proportional to 111,877.98, 167,660.22 and 55,664.80 is: 83,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,877.98 : 167,660.22 = 55,664.80 : x
  2. Step 2: Convert to fraction form
    111,877.98/167,660.22 = 55,664.80/x
  3. Step 3: Cross multiply
    111,877.98x = 167,660.22 × 55,664.80
  4. Step 4: Simplify right side
    111,877.98x = 9,332,772,614.26
  5. Step 5: Solve for x
    x = 9,332,772,614.26/111,877.98
  6. Step 6: Final answer
    x = 83,419.21

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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.