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Finding the Fourth Proportional to 317,599.20, 476,744.40 and 177,631.20

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Solution

The fourth proportional to 317,599.20, 476,744.40 and 177,631.20 is: 266,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,599.20 : 476,744.40 = 177,631.20 : x
  2. Step 2: Convert to fraction form
    317,599.20/476,744.40 = 177,631.20/x
  3. Step 3: Cross multiply
    317,599.20x = 476,744.40 × 177,631.20
  4. Step 4: Simplify right side
    317,599.20x = 84,684,679,865.28
  5. Step 5: Solve for x
    x = 84,684,679,865.28/317,599.20
  6. Step 6: Final answer
    x = 266,640.09

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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.