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Finding the Fourth Proportional to 181,612.80, 250,627.20 and 101,049.60

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Solution

The fourth proportional to 181,612.80, 250,627.20 and 101,049.60 is: 139,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,612.80 : 250,627.20 = 101,049.60 : x
  2. Step 2: Convert to fraction form
    181,612.80/250,627.20 = 101,049.60/x
  3. Step 3: Cross multiply
    181,612.80x = 250,627.20 × 101,049.60
  4. Step 4: Simplify right side
    181,612.80x = 25,325,778,309.12
  5. Step 5: Solve for x
    x = 25,325,778,309.12/181,612.80
  6. Step 6: Final answer
    x = 139,449.30

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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.