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Finding the Fourth Proportional to 135,966.40, 203,546.40 and 101,060.80

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Solution

The fourth proportional to 135,966.40, 203,546.40 and 101,060.80 is: 151,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,966.40 : 203,546.40 = 101,060.80 : x
  2. Step 2: Convert to fraction form
    135,966.40/203,546.40 = 101,060.80/x
  3. Step 3: Cross multiply
    135,966.40x = 203,546.40 × 101,060.80
  4. Step 4: Simplify right side
    135,966.40x = 20,570,562,021.12
  5. Step 5: Solve for x
    x = 20,570,562,021.12/135,966.40
  6. Step 6: Final answer
    x = 151,291.51

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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.