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Finding the Fourth Proportional to 203,532.93, 280,892.66 and 112,918.04

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Solution

The fourth proportional to 203,532.93, 280,892.66 and 112,918.04 is: 155,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,532.93 : 280,892.66 = 112,918.04 : x
  2. Step 2: Convert to fraction form
    203,532.93/280,892.66 = 112,918.04/x
  3. Step 3: Cross multiply
    203,532.93x = 280,892.66 × 112,918.04
  4. Step 4: Simplify right side
    203,532.93x = 31,717,846,648.53
  5. Step 5: Solve for x
    x = 31,717,846,648.53/203,532.93
  6. Step 6: Final answer
    x = 155,836.44

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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.