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Finding the Fourth Proportional to 171,451.71, 236,575.80 and 107,744.40

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Solution

The fourth proportional to 171,451.71, 236,575.80 and 107,744.40 is: 148,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,451.71 : 236,575.80 = 107,744.40 : x
  2. Step 2: Convert to fraction form
    171,451.71/236,575.80 = 107,744.40/x
  3. Step 3: Cross multiply
    171,451.71x = 236,575.80 × 107,744.40
  4. Step 4: Simplify right side
    171,451.71x = 25,489,717,625.52
  5. Step 5: Solve for x
    x = 25,489,717,625.52/171,451.71
  6. Step 6: Final answer
    x = 148,669.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.