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Finding the Fourth Proportional to 194,028.86, 291,104.04 and 123,392

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Solution

The fourth proportional to 194,028.86, 291,104.04 and 123,392 is: 185,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,028.86 : 291,104.04 = 123,392 : x
  2. Step 2: Convert to fraction form
    194,028.86/291,104.04 = 123,392/x
  3. Step 3: Cross multiply
    194,028.86x = 291,104.04 × 123,392
  4. Step 4: Simplify right side
    194,028.86x = 35,919,909,703.68
  5. Step 5: Solve for x
    x = 35,919,909,703.68/194,028.86
  6. Step 6: Final answer
    x = 185,126.63

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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.