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Finding the Fourth Proportional to 188,826.70, 283,240.05 and 70,507.27

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Solution

The fourth proportional to 188,826.70, 283,240.05 and 70,507.27 is: 105,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,826.70 : 283,240.05 = 70,507.27 : x
  2. Step 2: Convert to fraction form
    188,826.70/283,240.05 = 70,507.27/x
  3. Step 3: Cross multiply
    188,826.70x = 283,240.05 × 70,507.27
  4. Step 4: Simplify right side
    188,826.70x = 19,970,482,680.16
  5. Step 5: Solve for x
    x = 19,970,482,680.16/188,826.70
  6. Step 6: Final answer
    x = 105,760.91

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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.