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Finding the Fourth Proportional to 111,361.62, 166,963.08 and 52,165.02

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Solution

The fourth proportional to 111,361.62, 166,963.08 and 52,165.02 is: 78,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,361.62 : 166,963.08 = 52,165.02 : x
  2. Step 2: Convert to fraction form
    111,361.62/166,963.08 = 52,165.02/x
  3. Step 3: Cross multiply
    111,361.62x = 166,963.08 × 52,165.02
  4. Step 4: Simplify right side
    111,361.62x = 8,709,632,407.46
  5. Step 5: Solve for x
    x = 8,709,632,407.46/111,361.62
  6. Step 6: Final answer
    x = 78,210.36

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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.