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Finding the Fourth Proportional to 119,952.85, 165,534.03 and 66,241.50

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Solution

The fourth proportional to 119,952.85, 165,534.03 and 66,241.50 is: 91,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,952.85 : 165,534.03 = 66,241.50 : x
  2. Step 2: Convert to fraction form
    119,952.85/165,534.03 = 66,241.50/x
  3. Step 3: Cross multiply
    119,952.85x = 165,534.03 × 66,241.50
  4. Step 4: Simplify right side
    119,952.85x = 10,965,221,827.49
  5. Step 5: Solve for x
    x = 10,965,221,827.49/119,952.85
  6. Step 6: Final answer
    x = 91,412.77

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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.