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Finding the Fourth Proportional to 111,972.60, 168,002.64 and 41,857.38

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Solution

The fourth proportional to 111,972.60, 168,002.64 and 41,857.38 is: 62,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,972.60 : 168,002.64 = 41,857.38 : x
  2. Step 2: Convert to fraction form
    111,972.60/168,002.64 = 41,857.38/x
  3. Step 3: Cross multiply
    111,972.60x = 168,002.64 × 41,857.38
  4. Step 4: Simplify right side
    111,972.60x = 7,032,150,343.48
  5. Step 5: Solve for x
    x = 7,032,150,343.48/111,972.60
  6. Step 6: Final answer
    x = 62,802.42

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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.