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Finding the Fourth Proportional to 150,271.52, 207,327.75 and 86,600.66

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Solution

The fourth proportional to 150,271.52, 207,327.75 and 86,600.66 is: 119,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,271.52 : 207,327.75 = 86,600.66 : x
  2. Step 2: Convert to fraction form
    150,271.52/207,327.75 = 86,600.66/x
  3. Step 3: Cross multiply
    150,271.52x = 207,327.75 × 86,600.66
  4. Step 4: Simplify right side
    150,271.52x = 17,954,719,986.32
  5. Step 5: Solve for x
    x = 17,954,719,986.32/150,271.52
  6. Step 6: Final answer
    x = 119,481.86

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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.