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Finding the Fourth Proportional to 73,165.14, 100,968.06 and 39,631.14

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Solution

The fourth proportional to 73,165.14, 100,968.06 and 39,631.14 is: 54,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,165.14 : 100,968.06 = 39,631.14 : x
  2. Step 2: Convert to fraction form
    73,165.14/100,968.06 = 39,631.14/x
  3. Step 3: Cross multiply
    73,165.14x = 100,968.06 × 39,631.14
  4. Step 4: Simplify right side
    73,165.14x = 4,001,479,321.39
  5. Step 5: Solve for x
    x = 4,001,479,321.39/73,165.14
  6. Step 6: Final answer
    x = 54,691.06

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1.5x scale

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.