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Finding the Fourth Proportional to 100,177.91, 150,028.34 and 57,969.04

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Solution

The fourth proportional to 100,177.91, 150,028.34 and 57,969.04 is: 86,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,177.91 : 150,028.34 = 57,969.04 : x
  2. Step 2: Convert to fraction form
    100,177.91/150,028.34 = 57,969.04/x
  3. Step 3: Cross multiply
    100,177.91x = 150,028.34 × 57,969.04
  4. Step 4: Simplify right side
    100,177.91x = 8,696,998,177.68
  5. Step 5: Solve for x
    x = 8,696,998,177.68/100,177.91
  6. Step 6: Final answer
    x = 86,815.53

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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.