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Finding the Fourth Proportional to 349,435.87, 482,216.90 and 194,385.62

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Solution

The fourth proportional to 349,435.87, 482,216.90 and 194,385.62 is: 268,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,435.87 : 482,216.90 = 194,385.62 : x
  2. Step 2: Convert to fraction form
    349,435.87/482,216.90 = 194,385.62/x
  3. Step 3: Cross multiply
    349,435.87x = 482,216.90 × 194,385.62
  4. Step 4: Simplify right side
    349,435.87x = 93,736,031,314.59
  5. Step 5: Solve for x
    x = 93,736,031,314.59/349,435.87
  6. Step 6: Final answer
    x = 268,249.59

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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.