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Finding the Fourth Proportional to 114,525.71, 171,788.56 and 67,212.80

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Solution

The fourth proportional to 114,525.71, 171,788.56 and 67,212.80 is: 100,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,525.71 : 171,788.56 = 67,212.80 : x
  2. Step 2: Convert to fraction form
    114,525.71/171,788.56 = 67,212.80/x
  3. Step 3: Cross multiply
    114,525.71x = 171,788.56 × 67,212.80
  4. Step 4: Simplify right side
    114,525.71x = 11,546,389,098.59
  5. Step 5: Solve for x
    x = 11,546,389,098.59/114,525.71
  6. Step 6: Final answer
    x = 100,819.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.