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Finding the Fourth Proportional to 70,096.62, 96,732.11 and 39,881.31

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Solution

The fourth proportional to 70,096.62, 96,732.11 and 39,881.31 is: 55,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,096.62 : 96,732.11 = 39,881.31 : x
  2. Step 2: Convert to fraction form
    70,096.62/96,732.11 = 39,881.31/x
  3. Step 3: Cross multiply
    70,096.62x = 96,732.11 × 39,881.31
  4. Step 4: Simplify right side
    70,096.62x = 3,857,803,066.46
  5. Step 5: Solve for x
    x = 3,857,803,066.46/70,096.62
  6. Step 6: Final answer
    x = 55,035.51

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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.