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Finding the Fourth Proportional to 194,762.78, 292,176.44 and 68,370.22

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Solution

The fourth proportional to 194,762.78, 292,176.44 and 68,370.22 is: 102,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,762.78 : 292,176.44 = 68,370.22 : x
  2. Step 2: Convert to fraction form
    194,762.78/292,176.44 = 68,370.22/x
  3. Step 3: Cross multiply
    194,762.78x = 292,176.44 × 68,370.22
  4. Step 4: Simplify right side
    194,762.78x = 19,976,167,481.62
  5. Step 5: Solve for x
    x = 19,976,167,481.62/194,762.78
  6. Step 6: Final answer
    x = 102,566.66

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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.