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Finding the Fourth Proportional to 111,196.80, 166,795.20 and 107,260.20

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Solution

The fourth proportional to 111,196.80, 166,795.20 and 107,260.20 is: 160,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,196.80 : 166,795.20 = 107,260.20 : x
  2. Step 2: Convert to fraction form
    111,196.80/166,795.20 = 107,260.20/x
  3. Step 3: Cross multiply
    111,196.80x = 166,795.20 × 107,260.20
  4. Step 4: Simplify right side
    111,196.80x = 17,890,486,511.04
  5. Step 5: Solve for x
    x = 17,890,486,511.04/111,196.80
  6. Step 6: Final answer
    x = 160,890.30

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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.