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Finding the Fourth Proportional to 80,925.99, 121,388.99 and 34,179.27

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Solution

The fourth proportional to 80,925.99, 121,388.99 and 34,179.27 is: 51,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,925.99 : 121,388.99 = 34,179.27 : x
  2. Step 2: Convert to fraction form
    80,925.99/121,388.99 = 34,179.27/x
  3. Step 3: Cross multiply
    80,925.99x = 121,388.99 × 34,179.27
  4. Step 4: Simplify right side
    80,925.99x = 4,148,986,893.34
  5. Step 5: Solve for x
    x = 4,148,986,893.34/80,925.99
  6. Step 6: Final answer
    x = 51,268.91

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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.