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Finding the Fourth Proportional to 136,216.60, 203,936.10 and 132,328.60

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Solution

The fourth proportional to 136,216.60, 203,936.10 and 132,328.60 is: 198,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,216.60 : 203,936.10 = 132,328.60 : x
  2. Step 2: Convert to fraction form
    136,216.60/203,936.10 = 132,328.60/x
  3. Step 3: Cross multiply
    136,216.60x = 203,936.10 × 132,328.60
  4. Step 4: Simplify right side
    136,216.60x = 26,986,578,602.46
  5. Step 5: Solve for x
    x = 26,986,578,602.46/136,216.60
  6. Step 6: Final answer
    x = 198,115.20

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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.