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Finding the Fourth Proportional to 317,153.36, 474,796.91 and 211,710.80

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Solution

The fourth proportional to 317,153.36, 474,796.91 and 211,710.80 is: 316,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,153.36 : 474,796.91 = 211,710.80 : x
  2. Step 2: Convert to fraction form
    317,153.36/474,796.91 = 211,710.80/x
  3. Step 3: Cross multiply
    317,153.36x = 474,796.91 × 211,710.80
  4. Step 4: Simplify right side
    317,153.36x = 100,519,633,653.63
  5. Step 5: Solve for x
    x = 100,519,633,653.63/317,153.36
  6. Step 6: Final answer
    x = 316,943.30

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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.