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Finding the Fourth Proportional to 134,682.99, 185,884.46 and 81,022.25

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Solution

The fourth proportional to 134,682.99, 185,884.46 and 81,022.25 is: 111,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,682.99 : 185,884.46 = 81,022.25 : x
  2. Step 2: Convert to fraction form
    134,682.99/185,884.46 = 81,022.25/x
  3. Step 3: Cross multiply
    134,682.99x = 185,884.46 × 81,022.25
  4. Step 4: Simplify right side
    134,682.99x = 15,060,775,854.70
  5. Step 5: Solve for x
    x = 15,060,775,854.70/134,682.99
  6. Step 6: Final answer
    x = 111,823.89

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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.