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Finding the Fourth Proportional to 111,011.20, 166,516.80 and 111,011.20

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Solution

The fourth proportional to 111,011.20, 166,516.80 and 111,011.20 is: 166,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,011.20 : 166,516.80 = 111,011.20 : x
  2. Step 2: Convert to fraction form
    111,011.20/166,516.80 = 111,011.20/x
  3. Step 3: Cross multiply
    111,011.20x = 166,516.80 × 111,011.20
  4. Step 4: Simplify right side
    111,011.20x = 18,485,229,788.16
  5. Step 5: Solve for x
    x = 18,485,229,788.16/111,011.20
  6. Step 6: Final answer
    x = 166,516.80

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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.