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Finding the Fourth Proportional to 194,982.80, 292,036.80 and 159,990.80

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Solution

The fourth proportional to 194,982.80, 292,036.80 and 159,990.80 is: 239,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,982.80 : 292,036.80 = 159,990.80 : x
  2. Step 2: Convert to fraction form
    194,982.80/292,036.80 = 159,990.80/x
  3. Step 3: Cross multiply
    194,982.80x = 292,036.80 × 159,990.80
  4. Step 4: Simplify right side
    194,982.80x = 46,723,201,261.44
  5. Step 5: Solve for x
    x = 46,723,201,261.44/194,982.80
  6. Step 6: Final answer
    x = 239,627.30

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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.