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Finding the Fourth Proportional to 230,293.64, 345,484.20 and 80,576.48

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Solution

The fourth proportional to 230,293.64, 345,484.20 and 80,576.48 is: 120,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,293.64 : 345,484.20 = 80,576.48 : x
  2. Step 2: Convert to fraction form
    230,293.64/345,484.20 = 80,576.48/x
  3. Step 3: Cross multiply
    230,293.64x = 345,484.20 × 80,576.48
  4. Step 4: Simplify right side
    230,293.64x = 27,837,900,731.62
  5. Step 5: Solve for x
    x = 27,837,900,731.62/230,293.64
  6. Step 6: Final answer
    x = 120,880.02

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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.