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Finding the Third Proportional to 87,468.75 and 139,246.88

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Solution

The third proportional to 87,468.75 and 139,246.88 is: 221,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,468.75 : 139,246.88 = 139,246.88 : x
  2. Step 2: Convert to fraction form
    87,468.75/139,246.88 = 139,246.88/x
  3. Step 3: Cross multiply
    87,468.75x = 139,246.88 × 139,246.88
  4. Step 4: Simplify right side
    87,468.75x = 19,389,692,197.27
  5. Step 5: Solve for x
    x = 19,389,692,197.27/87,468.75
  6. Step 6: Final answer
    x = 221,675.65

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.