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Finding the Fourth Proportional to 396,787.64, 595,211.86 and 112,473.42

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Solution

The fourth proportional to 396,787.64, 595,211.86 and 112,473.42 is: 168,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,787.64 : 595,211.86 = 112,473.42 : x
  2. Step 2: Convert to fraction form
    396,787.64/595,211.86 = 112,473.42/x
  3. Step 3: Cross multiply
    396,787.64x = 595,211.86 × 112,473.42
  4. Step 4: Simplify right side
    396,787.64x = 66,945,513,518.76
  5. Step 5: Solve for x
    x = 66,945,513,518.76/396,787.64
  6. Step 6: Final answer
    x = 168,718.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.