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Finding the Fourth Proportional to 368,172.90, 552,260.70 and 112,007.97

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Solution

The fourth proportional to 368,172.90, 552,260.70 and 112,007.97 is: 168,012.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,172.90 : 552,260.70 = 112,007.97 : x
  2. Step 2: Convert to fraction form
    368,172.90/552,260.70 = 112,007.97/x
  3. Step 3: Cross multiply
    368,172.90x = 552,260.70 × 112,007.97
  4. Step 4: Simplify right side
    368,172.90x = 61,857,599,917.78
  5. Step 5: Solve for x
    x = 61,857,599,917.78/368,172.90
  6. Step 6: Final answer
    x = 168,012.37

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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.