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Finding the Fourth Proportional to 135,356.20, 203,047.10 and 36,860.20

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Solution

The fourth proportional to 135,356.20, 203,047.10 and 36,860.20 is: 55,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,356.20 : 203,047.10 = 36,860.20 : x
  2. Step 2: Convert to fraction form
    135,356.20/203,047.10 = 36,860.20/x
  3. Step 3: Cross multiply
    135,356.20x = 203,047.10 × 36,860.20
  4. Step 4: Simplify right side
    135,356.20x = 7,484,356,715.42
  5. Step 5: Solve for x
    x = 7,484,356,715.42/135,356.20
  6. Step 6: Final answer
    x = 55,293.79

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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.