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Finding the Fourth Proportional to 111,993.02, 154,575.52 and 71,169.02

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Solution

The fourth proportional to 111,993.02, 154,575.52 and 71,169.02 is: 98,229.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,993.02 : 154,575.52 = 71,169.02 : x
  2. Step 2: Convert to fraction form
    111,993.02/154,575.52 = 71,169.02/x
  3. Step 3: Cross multiply
    111,993.02x = 154,575.52 × 71,169.02
  4. Step 4: Simplify right side
    111,993.02x = 11,000,988,274.39
  5. Step 5: Solve for x
    x = 11,000,988,274.39/111,993.02
  6. Step 6: Final answer
    x = 98,229.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.