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Finding the Third Proportional to 79,471.13 and 169,831.69

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Solution

The third proportional to 79,471.13 and 169,831.69 is: 362,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,471.13 : 169,831.69 = 169,831.69 : x
  2. Step 2: Convert to fraction form
    79,471.13/169,831.69 = 169,831.69/x
  3. Step 3: Cross multiply
    79,471.13x = 169,831.69 × 169,831.69
  4. Step 4: Simplify right side
    79,471.13x = 28,842,802,079.10
  5. Step 5: Solve for x
    x = 28,842,802,079.10/79,471.13
  6. Step 6: Final answer
    x = 362,934.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.