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Finding the Fourth Proportional to 135,959.70, 203,939.55 and 116,276.70

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Solution

The fourth proportional to 135,959.70, 203,939.55 and 116,276.70 is: 174,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959.70 : 203,939.55 = 116,276.70 : x
  2. Step 2: Convert to fraction form
    135,959.70/203,939.55 = 116,276.70/x
  3. Step 3: Cross multiply
    135,959.70x = 203,939.55 × 116,276.70
  4. Step 4: Simplify right side
    135,959.70x = 23,713,417,873.49
  5. Step 5: Solve for x
    x = 23,713,417,873.49/135,959.70
  6. Step 6: Final answer
    x = 174,415.05

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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.