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Finding the Fourth Proportional to 111,106.08, 166,660.20 and 28,000.08

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Solution

The fourth proportional to 111,106.08, 166,660.20 and 28,000.08 is: 42,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,106.08 : 166,660.20 = 28,000.08 : x
  2. Step 2: Convert to fraction form
    111,106.08/166,660.20 = 28,000.08/x
  3. Step 3: Cross multiply
    111,106.08x = 166,660.20 × 28,000.08
  4. Step 4: Simplify right side
    111,106.08x = 4,666,498,932.82
  5. Step 5: Solve for x
    x = 4,666,498,932.82/111,106.08
  6. Step 6: Final answer
    x = 42,000.39

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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.