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Finding the Fourth Proportional to 136,004.60, 204,039.30 and 65,826.20

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Solution

The fourth proportional to 136,004.60, 204,039.30 and 65,826.20 is: 98,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,004.60 : 204,039.30 = 65,826.20 : x
  2. Step 2: Convert to fraction form
    136,004.60/204,039.30 = 65,826.20/x
  3. Step 3: Cross multiply
    136,004.60x = 204,039.30 × 65,826.20
  4. Step 4: Simplify right side
    136,004.60x = 13,431,131,769.66
  5. Step 5: Solve for x
    x = 13,431,131,769.66/136,004.60
  6. Step 6: Final answer
    x = 98,754.98

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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.