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Finding the Fourth Proportional to 136,373.88, 204,580.02 and 66,243.96

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Solution

The fourth proportional to 136,373.88, 204,580.02 and 66,243.96 is: 99,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,373.88 : 204,580.02 = 66,243.96 : x
  2. Step 2: Convert to fraction form
    136,373.88/204,580.02 = 66,243.96/x
  3. Step 3: Cross multiply
    136,373.88x = 204,580.02 × 66,243.96
  4. Step 4: Simplify right side
    136,373.88x = 13,552,190,661.68
  5. Step 5: Solve for x
    x = 13,552,190,661.68/136,373.88
  6. Step 6: Final answer
    x = 99,375.27

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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.