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Finding the Fourth Proportional to 93,879.12, 140,825.16 and 27,319.80

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Solution

The fourth proportional to 93,879.12, 140,825.16 and 27,319.80 is: 40,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,879.12 : 140,825.16 = 27,319.80 : x
  2. Step 2: Convert to fraction form
    93,879.12/140,825.16 = 27,319.80/x
  3. Step 3: Cross multiply
    93,879.12x = 140,825.16 × 27,319.80
  4. Step 4: Simplify right side
    93,879.12x = 3,847,315,206.17
  5. Step 5: Solve for x
    x = 3,847,315,206.17/93,879.12
  6. Step 6: Final answer
    x = 40,981.59

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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.