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Finding the Fourth Proportional to 116,965.60, 161,412.92 and 63,251.01

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Solution

The fourth proportional to 116,965.60, 161,412.92 and 63,251.01 is: 87,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,965.60 : 161,412.92 = 63,251.01 : x
  2. Step 2: Convert to fraction form
    116,965.60/161,412.92 = 63,251.01/x
  3. Step 3: Cross multiply
    116,965.60x = 161,412.92 × 63,251.01
  4. Step 4: Simplify right side
    116,965.60x = 10,209,530,137.99
  5. Step 5: Solve for x
    x = 10,209,530,137.99/116,965.60
  6. Step 6: Final answer
    x = 87,286.60

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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.