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Finding the Fourth Proportional to 73,040.92, 100,812.72 and 47,502.88

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Solution

The fourth proportional to 73,040.92, 100,812.72 and 47,502.88 is: 65,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,040.92 : 100,812.72 = 47,502.88 : x
  2. Step 2: Convert to fraction form
    73,040.92/100,812.72 = 47,502.88/x
  3. Step 3: Cross multiply
    73,040.92x = 100,812.72 × 47,502.88
  4. Step 4: Simplify right side
    73,040.92x = 4,788,894,540.63
  5. Step 5: Solve for x
    x = 4,788,894,540.63/73,040.92
  6. Step 6: Final answer
    x = 65,564.54

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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.