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Finding the Fourth Proportional to 119,993.99, 165,577.52 and 66,275.81

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Solution

The fourth proportional to 119,993.99, 165,577.52 and 66,275.81 is: 91,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,993.99 : 165,577.52 = 66,275.81 : x
  2. Step 2: Convert to fraction form
    119,993.99/165,577.52 = 66,275.81/x
  3. Step 3: Cross multiply
    119,993.99x = 165,577.52 × 66,275.81
  4. Step 4: Simplify right side
    119,993.99x = 10,973,783,096.52
  5. Step 5: Solve for x
    x = 10,973,783,096.52/119,993.99
  6. Step 6: Final answer
    x = 91,452.77

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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.