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Finding the Fourth Proportional to 100,615.91, 150,726.60 and 58,407.48

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Solution

The fourth proportional to 100,615.91, 150,726.60 and 58,407.48 is: 87,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,615.91 : 150,726.60 = 58,407.48 : x
  2. Step 2: Convert to fraction form
    100,615.91/150,726.60 = 58,407.48/x
  3. Step 3: Cross multiply
    100,615.91x = 150,726.60 × 58,407.48
  4. Step 4: Simplify right side
    100,615.91x = 8,803,560,874.97
  5. Step 5: Solve for x
    x = 8,803,560,874.97/100,615.91
  6. Step 6: Final answer
    x = 87,496.71

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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.