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Finding the Fourth Proportional to 73,007.16, 100,749.72 and 39,473.16

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Solution

The fourth proportional to 73,007.16, 100,749.72 and 39,473.16 is: 54,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,007.16 : 100,749.72 = 39,473.16 : x
  2. Step 2: Convert to fraction form
    73,007.16/100,749.72 = 39,473.16/x
  3. Step 3: Cross multiply
    73,007.16x = 100,749.72 × 39,473.16
  4. Step 4: Simplify right side
    73,007.16x = 3,976,909,817.52
  5. Step 5: Solve for x
    x = 3,976,909,817.52/73,007.16
  6. Step 6: Final answer
    x = 54,472.87

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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.