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Finding the Third Proportional to 98,111.25 and 211,909.50

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Solution

The third proportional to 98,111.25 and 211,909.50 is: 457,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.25 : 211,909.50 = 211,909.50 : x
  2. Step 2: Convert to fraction form
    98,111.25/211,909.50 = 211,909.50/x
  3. Step 3: Cross multiply
    98,111.25x = 211,909.50 × 211,909.50
  4. Step 4: Simplify right side
    98,111.25x = 44,905,636,190.25
  5. Step 5: Solve for x
    x = 44,905,636,190.25/98,111.25
  6. Step 6: Final answer
    x = 457,701.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.