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Finding the Fourth Proportional to 99,788.58, 149,759.01 and 36,668.52

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Solution

The fourth proportional to 99,788.58, 149,759.01 and 36,668.52 is: 55,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,788.58 : 149,759.01 = 36,668.52 : x
  2. Step 2: Convert to fraction form
    99,788.58/149,759.01 = 36,668.52/x
  3. Step 3: Cross multiply
    99,788.58x = 149,759.01 × 36,668.52
  4. Step 4: Simplify right side
    99,788.58x = 5,491,441,253.37
  5. Step 5: Solve for x
    x = 5,491,441,253.37/99,788.58
  6. Step 6: Final answer
    x = 55,030.76

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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.