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Finding the Fourth Proportional to 168,372, 232,356.60 and 92,918.88

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Solution

The fourth proportional to 168,372, 232,356.60 and 92,918.88 is: 128,229.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,372 : 232,356.60 = 92,918.88 : x
  2. Step 2: Convert to fraction form
    168,372/232,356.60 = 92,918.88/x
  3. Step 3: Cross multiply
    168,372x = 232,356.60 × 92,918.88
  4. Step 4: Simplify right side
    168,372x = 21,590,315,032.61
  5. Step 5: Solve for x
    x = 21,590,315,032.61/168,372
  6. Step 6: Final answer
    x = 128,229.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.