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Finding the Fourth Proportional to 111,275.18, 166,913.49 and 28,169.18

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Solution

The fourth proportional to 111,275.18, 166,913.49 and 28,169.18 is: 42,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,275.18 : 166,913.49 = 28,169.18 : x
  2. Step 2: Convert to fraction form
    111,275.18/166,913.49 = 28,169.18/x
  3. Step 3: Cross multiply
    111,275.18x = 166,913.49 × 28,169.18
  4. Step 4: Simplify right side
    111,275.18x = 4,701,816,144.24
  5. Step 5: Solve for x
    x = 4,701,816,144.24/111,275.18
  6. Step 6: Final answer
    x = 42,253.95

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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.