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Finding the Fourth Proportional to 111,360.12, 167,049.90 and 28,254.12

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Solution

The fourth proportional to 111,360.12, 167,049.90 and 28,254.12 is: 42,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,360.12 : 167,049.90 = 28,254.12 : x
  2. Step 2: Convert to fraction form
    111,360.12/167,049.90 = 28,254.12/x
  3. Step 3: Cross multiply
    111,360.12x = 167,049.90 × 28,254.12
  4. Step 4: Simplify right side
    111,360.12x = 4,719,847,920.59
  5. Step 5: Solve for x
    x = 4,719,847,920.59/111,360.12
  6. Step 6: Final answer
    x = 42,383.65

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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.