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Finding the Fourth Proportional to 110,837.80, 166,143.30 and 54,591.40

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Solution

The fourth proportional to 110,837.80, 166,143.30 and 54,591.40 is: 81,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,837.80 : 166,143.30 = 54,591.40 : x
  2. Step 2: Convert to fraction form
    110,837.80/166,143.30 = 54,591.40/x
  3. Step 3: Cross multiply
    110,837.80x = 166,143.30 × 54,591.40
  4. Step 4: Simplify right side
    110,837.80x = 9,069,995,347.62
  5. Step 5: Solve for x
    x = 9,069,995,347.62/110,837.80
  6. Step 6: Final answer
    x = 81,831.25

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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.