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Finding the Fourth Proportional to 111,081.60, 166,646.70 and 54,948.60

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Solution

The fourth proportional to 111,081.60, 166,646.70 and 54,948.60 is: 82,434.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,081.60 : 166,646.70 = 54,948.60 : x
  2. Step 2: Convert to fraction form
    111,081.60/166,646.70 = 54,948.60/x
  3. Step 3: Cross multiply
    111,081.60x = 166,646.70 × 54,948.60
  4. Step 4: Simplify right side
    111,081.60x = 9,157,002,859.62
  5. Step 5: Solve for x
    x = 9,157,002,859.62/111,081.60
  6. Step 6: Final answer
    x = 82,434.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.