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Finding the Fourth Proportional to 203,191.30, 304,268.55 and 161,719.30

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Solution

The fourth proportional to 203,191.30, 304,268.55 and 161,719.30 is: 242,166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,191.30 : 304,268.55 = 161,719.30 : x
  2. Step 2: Convert to fraction form
    203,191.30/304,268.55 = 161,719.30/x
  3. Step 3: Cross multiply
    203,191.30x = 304,268.55 × 161,719.30
  4. Step 4: Simplify right side
    203,191.30x = 49,206,096,918.02
  5. Step 5: Solve for x
    x = 49,206,096,918.02/203,191.30
  6. Step 6: Final answer
    x = 242,166.36

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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.