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Finding the Fourth Proportional to 79,127.96, 118,691.64 and 32,380.84

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Solution

The fourth proportional to 79,127.96, 118,691.64 and 32,380.84 is: 48,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.96 : 118,691.64 = 32,380.84 : x
  2. Step 2: Convert to fraction form
    79,127.96/118,691.64 = 32,380.84/x
  3. Step 3: Cross multiply
    79,127.96x = 118,691.64 × 32,380.84
  4. Step 4: Simplify right side
    79,127.96x = 3,843,335,004.18
  5. Step 5: Solve for x
    x = 3,843,335,004.18/79,127.96
  6. Step 6: Final answer
    x = 48,571.14

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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.