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Finding the Fourth Proportional to 203,250.40, 304,765.62 and 161,399.72

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Solution

The fourth proportional to 203,250.40, 304,765.62 and 161,399.72 is: 242,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,250.40 : 304,765.62 = 161,399.72 : x
  2. Step 2: Convert to fraction form
    203,250.40/304,765.62 = 161,399.72/x
  3. Step 3: Cross multiply
    203,250.40x = 304,765.62 × 161,399.72
  4. Step 4: Simplify right side
    203,250.40x = 49,189,085,733.63
  5. Step 5: Solve for x
    x = 49,189,085,733.63/203,250.40
  6. Step 6: Final answer
    x = 242,012.25

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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.