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Finding the Fourth Proportional to 136,001.80, 203,945.10 and 65,902.60

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Solution

The fourth proportional to 136,001.80, 203,945.10 and 65,902.60 is: 98,825.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,001.80 : 203,945.10 = 65,902.60 : x
  2. Step 2: Convert to fraction form
    136,001.80/203,945.10 = 65,902.60/x
  3. Step 3: Cross multiply
    136,001.80x = 203,945.10 × 65,902.60
  4. Step 4: Simplify right side
    136,001.80x = 13,440,512,347.26
  5. Step 5: Solve for x
    x = 13,440,512,347.26/136,001.80
  6. Step 6: Final answer
    x = 98,825.99

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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.