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Finding the Fourth Proportional to 111,353.10, 167,029.65 and 28,247.10

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Solution

The fourth proportional to 111,353.10, 167,029.65 and 28,247.10 is: 42,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,353.10 : 167,029.65 = 28,247.10 : x
  2. Step 2: Convert to fraction form
    111,353.10/167,029.65 = 28,247.10/x
  3. Step 3: Cross multiply
    111,353.10x = 167,029.65 × 28,247.10
  4. Step 4: Simplify right side
    111,353.10x = 4,718,103,226.52
  5. Step 5: Solve for x
    x = 4,718,103,226.52/111,353.10
  6. Step 6: Final answer
    x = 42,370.65

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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.