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Finding the Fourth Proportional to 111,132.98, 166,531.09 and 73,558.43

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Solution

The fourth proportional to 111,132.98, 166,531.09 and 73,558.43 is: 110,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,132.98 : 166,531.09 = 73,558.43 : x
  2. Step 2: Convert to fraction form
    111,132.98/166,531.09 = 73,558.43/x
  3. Step 3: Cross multiply
    111,132.98x = 166,531.09 × 73,558.43
  4. Step 4: Simplify right side
    111,132.98x = 12,249,765,526.59
  5. Step 5: Solve for x
    x = 12,249,765,526.59/111,132.98
  6. Step 6: Final answer
    x = 110,226.20

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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.