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Finding the Fourth Proportional to 203,310.44, 280,569.06 and 112,667.90

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Solution

The fourth proportional to 203,310.44, 280,569.06 and 112,667.90 is: 155,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,310.44 : 280,569.06 = 112,667.90 : x
  2. Step 2: Convert to fraction form
    203,310.44/280,569.06 = 112,667.90/x
  3. Step 3: Cross multiply
    203,310.44x = 280,569.06 × 112,667.90
  4. Step 4: Simplify right side
    203,310.44x = 31,611,126,795.17
  5. Step 5: Solve for x
    x = 31,611,126,795.17/203,310.44
  6. Step 6: Final answer
    x = 155,482.06

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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.