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Finding the Fourth Proportional to 203,191.30, 304,639.29 and 84,896.47

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Solution

The fourth proportional to 203,191.30, 304,639.29 and 84,896.47 is: 127,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,191.30 : 304,639.29 = 84,896.47 : x
  2. Step 2: Convert to fraction form
    203,191.30/304,639.29 = 84,896.47/x
  3. Step 3: Cross multiply
    203,191.30x = 304,639.29 × 84,896.47
  4. Step 4: Simplify right side
    203,191.30x = 25,862,800,344.31
  5. Step 5: Solve for x
    x = 25,862,800,344.31/203,191.30
  6. Step 6: Final answer
    x = 127,283.01

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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.