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Finding the Fourth Proportional to 119,892.48, 165,450.71 and 66,177.50

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Solution

The fourth proportional to 119,892.48, 165,450.71 and 66,177.50 is: 91,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,892.48 : 165,450.71 = 66,177.50 : x
  2. Step 2: Convert to fraction form
    119,892.48/165,450.71 = 66,177.50/x
  3. Step 3: Cross multiply
    119,892.48x = 165,450.71 × 66,177.50
  4. Step 4: Simplify right side
    119,892.48x = 10,949,113,202.88
  5. Step 5: Solve for x
    x = 10,949,113,202.88/119,892.48
  6. Step 6: Final answer
    x = 91,324.44

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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.