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Finding the Fourth Proportional to 119,955.92, 165,539.16 and 66,241.04

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Solution

The fourth proportional to 119,955.92, 165,539.16 and 66,241.04 is: 91,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,955.92 : 165,539.16 = 66,241.04 : x
  2. Step 2: Convert to fraction form
    119,955.92/165,539.16 = 66,241.04/x
  3. Step 3: Cross multiply
    119,955.92x = 165,539.16 × 66,241.04
  4. Step 4: Simplify right side
    119,955.92x = 10,965,485,291.43
  5. Step 5: Solve for x
    x = 10,965,485,291.43/119,955.92
  6. Step 6: Final answer
    x = 91,412.63

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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.