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Finding the Third Proportional to 98,824.64 and 217,328.91

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Solution

The third proportional to 98,824.64 and 217,328.91 is: 477,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,824.64 : 217,328.91 = 217,328.91 : x
  2. Step 2: Convert to fraction form
    98,824.64/217,328.91 = 217,328.91/x
  3. Step 3: Cross multiply
    98,824.64x = 217,328.91 × 217,328.91
  4. Step 4: Simplify right side
    98,824.64x = 47,231,853,491.82
  5. Step 5: Solve for x
    x = 47,231,853,491.82/98,824.64
  6. Step 6: Final answer
    x = 477,936.00

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.