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Finding the Fourth Proportional to 203,797.18, 281,233.98 and 111,916.30

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Solution

The fourth proportional to 203,797.18, 281,233.98 and 111,916.30 is: 154,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,797.18 : 281,233.98 = 111,916.30 : x
  2. Step 2: Convert to fraction form
    203,797.18/281,233.98 = 111,916.30/x
  3. Step 3: Cross multiply
    203,797.18x = 281,233.98 × 111,916.30
  4. Step 4: Simplify right side
    203,797.18x = 31,474,666,475.87
  5. Step 5: Solve for x
    x = 31,474,666,475.87/203,797.18
  6. Step 6: Final answer
    x = 154,441.13

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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.