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Finding the Fourth Proportional to 168,632.93, 252,943.37 and 42,274.22

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Solution

The fourth proportional to 168,632.93, 252,943.37 and 42,274.22 is: 63,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,632.93 : 252,943.37 = 42,274.22 : x
  2. Step 2: Convert to fraction form
    168,632.93/252,943.37 = 42,274.22/x
  3. Step 3: Cross multiply
    168,632.93x = 252,943.37 × 42,274.22
  4. Step 4: Simplify right side
    168,632.93x = 10,692,982,194.83
  5. Step 5: Solve for x
    x = 10,692,982,194.83/168,632.93
  6. Step 6: Final answer
    x = 63,409.81

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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.