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Finding the Fourth Proportional to 111,151.30, 166,613.55 and 54,904.90

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Solution

The fourth proportional to 111,151.30, 166,613.55 and 54,904.90 is: 82,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,151.30 : 166,613.55 = 54,904.90 : x
  2. Step 2: Convert to fraction form
    111,151.30/166,613.55 = 54,904.90/x
  3. Step 3: Cross multiply
    111,151.30x = 166,613.55 × 54,904.90
  4. Step 4: Simplify right side
    111,151.30x = 9,147,900,301.40
  5. Step 5: Solve for x
    x = 9,147,900,301.40/111,151.30
  6. Step 6: Final answer
    x = 82,301.33

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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.