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Finding the Fourth Proportional to 203,628.54, 280,935.92 and 117,585.07

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Solution

The fourth proportional to 203,628.54, 280,935.92 and 117,585.07 is: 162,226.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,628.54 : 280,935.92 = 117,585.07 : x
  2. Step 2: Convert to fraction form
    203,628.54/280,935.92 = 117,585.07/x
  3. Step 3: Cross multiply
    203,628.54x = 280,935.92 × 117,585.07
  4. Step 4: Simplify right side
    203,628.54x = 33,033,869,933.13
  5. Step 5: Solve for x
    x = 33,033,869,933.13/203,628.54
  6. Step 6: Final answer
    x = 162,226.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.