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Finding the Fourth Proportional to 194,680.80, 292,021.20 and 61,601.85

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Solution

The fourth proportional to 194,680.80, 292,021.20 and 61,601.85 is: 92,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,680.80 : 292,021.20 = 61,601.85 : x
  2. Step 2: Convert to fraction form
    194,680.80/292,021.20 = 61,601.85/x
  3. Step 3: Cross multiply
    194,680.80x = 292,021.20 × 61,601.85
  4. Step 4: Simplify right side
    194,680.80x = 17,989,046,159.22
  5. Step 5: Solve for x
    x = 17,989,046,159.22/194,680.80
  6. Step 6: Final answer
    x = 92,402.78

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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.