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Finding the Fourth Proportional to 203,494.64, 280,822.62 and 112,864.46

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Solution

The fourth proportional to 203,494.64, 280,822.62 and 112,864.46 is: 155,752.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,494.64 : 280,822.62 = 112,864.46 : x
  2. Step 2: Convert to fraction form
    203,494.64/280,822.62 = 112,864.46/x
  3. Step 3: Cross multiply
    203,494.64x = 280,822.62 × 112,864.46
  4. Step 4: Simplify right side
    203,494.64x = 31,694,893,362.09
  5. Step 5: Solve for x
    x = 31,694,893,362.09/203,494.64
  6. Step 6: Final answer
    x = 155,752.96

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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.