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Finding the Fourth Proportional to 222,911.72, 334,392.95 and 80,823.91

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Solution

The fourth proportional to 222,911.72, 334,392.95 and 80,823.91 is: 121,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,911.72 : 334,392.95 = 80,823.91 : x
  2. Step 2: Convert to fraction form
    222,911.72/334,392.95 = 80,823.91/x
  3. Step 3: Cross multiply
    222,911.72x = 334,392.95 × 80,823.91
  4. Step 4: Simplify right side
    222,911.72x = 27,026,943,619.35
  5. Step 5: Solve for x
    x = 27,026,943,619.35/222,911.72
  6. Step 6: Final answer
    x = 121,245.05

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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.