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Finding the Fourth Proportional to 230,716.20, 346,074.30 and 125,740.20

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Solution

The fourth proportional to 230,716.20, 346,074.30 and 125,740.20 is: 188,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,716.20 : 346,074.30 = 125,740.20 : x
  2. Step 2: Convert to fraction form
    230,716.20/346,074.30 = 125,740.20/x
  3. Step 3: Cross multiply
    230,716.20x = 346,074.30 × 125,740.20
  4. Step 4: Simplify right side
    230,716.20x = 43,515,451,696.86
  5. Step 5: Solve for x
    x = 43,515,451,696.86/230,716.20
  6. Step 6: Final answer
    x = 188,610.30

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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.