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Finding the Fourth Proportional to 73,212.92, 101,034.42 and 39,678.92

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Solution

The fourth proportional to 73,212.92, 101,034.42 and 39,678.92 is: 54,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,212.92 : 101,034.42 = 39,678.92 : x
  2. Step 2: Convert to fraction form
    73,212.92/101,034.42 = 39,678.92/x
  3. Step 3: Cross multiply
    73,212.92x = 101,034.42 × 39,678.92
  4. Step 4: Simplify right side
    73,212.92x = 4,008,936,668.43
  5. Step 5: Solve for x
    x = 4,008,936,668.43/73,212.92
  6. Step 6: Final answer
    x = 54,757.23

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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.