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Finding the Fourth Proportional to 317,247.85, 437,651.13 and 189,898.84

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Solution

The fourth proportional to 317,247.85, 437,651.13 and 189,898.84 is: 261,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,247.85 : 437,651.13 = 189,898.84 : x
  2. Step 2: Convert to fraction form
    317,247.85/437,651.13 = 189,898.84/x
  3. Step 3: Cross multiply
    317,247.85x = 437,651.13 × 189,898.84
  4. Step 4: Simplify right side
    317,247.85x = 83,109,441,911.69
  5. Step 5: Solve for x
    x = 83,109,441,911.69/317,247.85
  6. Step 6: Final answer
    x = 261,970.07

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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.