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Finding the Fourth Proportional to 104,652.72, 156,979.44 and 25,768.80

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Solution

The fourth proportional to 104,652.72, 156,979.44 and 25,768.80 is: 38,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.72 : 156,979.44 = 25,768.80 : x
  2. Step 2: Convert to fraction form
    104,652.72/156,979.44 = 25,768.80/x
  3. Step 3: Cross multiply
    104,652.72x = 156,979.44 × 25,768.80
  4. Step 4: Simplify right side
    104,652.72x = 4,045,171,793.47
  5. Step 5: Solve for x
    x = 4,045,171,793.47/104,652.72
  6. Step 6: Final answer
    x = 38,653.29

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1.5x scale

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.