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Finding the Fourth Proportional to 193,362.78, 290,052.04 and 92,108.78

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Solution

The fourth proportional to 193,362.78, 290,052.04 and 92,108.78 is: 138,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,362.78 : 290,052.04 = 92,108.78 : x
  2. Step 2: Convert to fraction form
    193,362.78/290,052.04 = 92,108.78/x
  3. Step 3: Cross multiply
    193,362.78x = 290,052.04 × 92,108.78
  4. Step 4: Simplify right side
    193,362.78x = 26,716,340,752.32
  5. Step 5: Solve for x
    x = 26,716,340,752.32/193,362.78
  6. Step 6: Final answer
    x = 138,166.92

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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.