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Finding the Fourth Proportional to 188,693.73, 283,031.37 and 70,355.84

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Solution

The fourth proportional to 188,693.73, 283,031.37 and 70,355.84 is: 105,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,693.73 : 283,031.37 = 70,355.84 : x
  2. Step 2: Convert to fraction form
    188,693.73/283,031.37 = 70,355.84/x
  3. Step 3: Cross multiply
    188,693.73x = 283,031.37 × 70,355.84
  4. Step 4: Simplify right side
    188,693.73x = 19,912,908,367.54
  5. Step 5: Solve for x
    x = 19,912,908,367.54/188,693.73
  6. Step 6: Final answer
    x = 105,530.31

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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.