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Finding the Fourth Proportional to 203,245.39, 304,758.13 and 161,394.72

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Solution

The fourth proportional to 203,245.39, 304,758.13 and 161,394.72 is: 242,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,245.39 : 304,758.13 = 161,394.72 : x
  2. Step 2: Convert to fraction form
    203,245.39/304,758.13 = 161,394.72/x
  3. Step 3: Cross multiply
    203,245.39x = 304,758.13 × 161,394.72
  4. Step 4: Simplify right side
    203,245.39x = 49,186,353,059.07
  5. Step 5: Solve for x
    x = 49,186,353,059.07/203,245.39
  6. Step 6: Final answer
    x = 242,004.77

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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.