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Finding the Fourth Proportional to 230,576.05, 345,874.67 and 70,640.51

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Solution

The fourth proportional to 230,576.05, 345,874.67 and 70,640.51 is: 105,964.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,576.05 : 345,874.67 = 70,640.51 : x
  2. Step 2: Convert to fraction form
    230,576.05/345,874.67 = 70,640.51/x
  3. Step 3: Cross multiply
    230,576.05x = 345,874.67 × 70,640.51
  4. Step 4: Simplify right side
    230,576.05x = 24,432,762,731.68
  5. Step 5: Solve for x
    x = 24,432,762,731.68/230,576.05
  6. Step 6: Final answer
    x = 105,964.01

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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.