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Finding the Fourth Proportional to 79,471.44, 109,671.28 and 43,662.24

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Solution

The fourth proportional to 79,471.44, 109,671.28 and 43,662.24 is: 60,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,471.44 : 109,671.28 = 43,662.24 : x
  2. Step 2: Convert to fraction form
    79,471.44/109,671.28 = 43,662.24/x
  3. Step 3: Cross multiply
    79,471.44x = 109,671.28 × 43,662.24
  4. Step 4: Simplify right side
    79,471.44x = 4,788,493,748.47
  5. Step 5: Solve for x
    x = 4,788,493,748.47/79,471.44
  6. Step 6: Final answer
    x = 60,254.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.