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Finding the Third Proportional to 70,831.13 and 155,616

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Solution

The third proportional to 70,831.13 and 155,616 is: 341,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.13 : 155,616 = 155,616 : x
  2. Step 2: Convert to fraction form
    70,831.13/155,616 = 155,616/x
  3. Step 3: Cross multiply
    70,831.13x = 155,616 × 155,616
  4. Step 4: Simplify right side
    70,831.13x = 24,216,339,456
  5. Step 5: Solve for x
    x = 24,216,339,456/70,831.13
  6. Step 6: Final answer
    x = 341,888.39

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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.