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Finding the Fourth Proportional to 73,790.91, 110,718.76 and 38,722.36

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Solution

The fourth proportional to 73,790.91, 110,718.76 and 38,722.36 is: 58,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,790.91 : 110,718.76 = 38,722.36 : x
  2. Step 2: Convert to fraction form
    73,790.91/110,718.76 = 38,722.36/x
  3. Step 3: Cross multiply
    73,790.91x = 110,718.76 × 38,722.36
  4. Step 4: Simplify right side
    73,790.91x = 4,287,291,683.47
  5. Step 5: Solve for x
    x = 4,287,291,683.47/73,790.91
  6. Step 6: Final answer
    x = 58,100.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.