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Finding the Fourth Proportional to 111,346.75, 167,029.86 and 28,240.75

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Solution

The fourth proportional to 111,346.75, 167,029.86 and 28,240.75 is: 42,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,346.75 : 167,029.86 = 28,240.75 : x
  2. Step 2: Convert to fraction form
    111,346.75/167,029.86 = 28,240.75/x
  3. Step 3: Cross multiply
    111,346.75x = 167,029.86 × 28,240.75
  4. Step 4: Simplify right side
    111,346.75x = 4,717,048,518.80
  5. Step 5: Solve for x
    x = 4,717,048,518.80/111,346.75
  6. Step 6: Final answer
    x = 42,363.59

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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.