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Finding the Fourth Proportional to 194,830.80, 292,224.60 and 159,709.20

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Solution

The fourth proportional to 194,830.80, 292,224.60 and 159,709.20 is: 239,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,830.80 : 292,224.60 = 159,709.20 : x
  2. Step 2: Convert to fraction form
    194,830.80/292,224.60 = 159,709.20/x
  3. Step 3: Cross multiply
    194,830.80x = 292,224.60 × 159,709.20
  4. Step 4: Simplify right side
    194,830.80x = 46,670,957,086.32
  5. Step 5: Solve for x
    x = 46,670,957,086.32/194,830.80
  6. Step 6: Final answer
    x = 239,546.09

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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.