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Finding the Fourth Proportional to 203,596.05, 280,964.24 and 112,957.96

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Solution

The fourth proportional to 203,596.05, 280,964.24 and 112,957.96 is: 155,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,596.05 : 280,964.24 = 112,957.96 : x
  2. Step 2: Convert to fraction form
    203,596.05/280,964.24 = 112,957.96/x
  3. Step 3: Cross multiply
    203,596.05x = 280,964.24 × 112,957.96
  4. Step 4: Simplify right side
    203,596.05x = 31,737,146,963.33
  5. Step 5: Solve for x
    x = 31,737,146,963.33/203,596.05
  6. Step 6: Final answer
    x = 155,882.92

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1.5x scale

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.