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Finding the Fourth Proportional to 203,551.33, 280,934.46 and 112,936.45

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Solution

The fourth proportional to 203,551.33, 280,934.46 and 112,936.45 is: 155,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,551.33 : 280,934.46 = 112,936.45 : x
  2. Step 2: Convert to fraction form
    203,551.33/280,934.46 = 112,936.45/x
  3. Step 3: Cross multiply
    203,551.33x = 280,934.46 × 112,936.45
  4. Step 4: Simplify right side
    203,551.33x = 31,727,740,595.07
  5. Step 5: Solve for x
    x = 31,727,740,595.07/203,551.33
  6. Step 6: Final answer
    x = 155,870.96

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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.