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Finding the Fourth Proportional to 70,112, 96,654.08 and 43,236.47

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Solution

The fourth proportional to 70,112, 96,654.08 and 43,236.47 is: 59,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,112 : 96,654.08 = 43,236.47 : x
  2. Step 2: Convert to fraction form
    70,112/96,654.08 = 43,236.47/x
  3. Step 3: Cross multiply
    70,112x = 96,654.08 × 43,236.47
  4. Step 4: Simplify right side
    70,112x = 4,178,981,230.30
  5. Step 5: Solve for x
    x = 4,178,981,230.30/70,112
  6. Step 6: Final answer
    x = 59,604.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.