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Finding the Fourth Proportional to 230,873.20, 346,309.80 and 191,474.80

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Solution

The fourth proportional to 230,873.20, 346,309.80 and 191,474.80 is: 287,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,873.20 : 346,309.80 = 191,474.80 : x
  2. Step 2: Convert to fraction form
    230,873.20/346,309.80 = 191,474.80/x
  3. Step 3: Cross multiply
    230,873.20x = 346,309.80 × 191,474.80
  4. Step 4: Simplify right side
    230,873.20x = 66,309,599,693.04
  5. Step 5: Solve for x
    x = 66,309,599,693.04/230,873.20
  6. Step 6: Final answer
    x = 287,212.20

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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.