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Finding the Third Proportional to 98,215.50 and 214,423.50

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Solution

The third proportional to 98,215.50 and 214,423.50 is: 468,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,215.50 : 214,423.50 = 214,423.50 : x
  2. Step 2: Convert to fraction form
    98,215.50/214,423.50 = 214,423.50/x
  3. Step 3: Cross multiply
    98,215.50x = 214,423.50 × 214,423.50
  4. Step 4: Simplify right side
    98,215.50x = 45,977,437,352.25
  5. Step 5: Solve for x
    x = 45,977,437,352.25/98,215.50
  6. Step 6: Final answer
    x = 468,128.12

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.