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Finding the Fourth Proportional to 79,261.98, 109,380.87 and 43,454.22

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Solution

The fourth proportional to 79,261.98, 109,380.87 and 43,454.22 is: 59,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.98 : 109,380.87 = 43,454.22 : x
  2. Step 2: Convert to fraction form
    79,261.98/109,380.87 = 43,454.22/x
  3. Step 3: Cross multiply
    79,261.98x = 109,380.87 × 43,454.22
  4. Step 4: Simplify right side
    79,261.98x = 4,753,060,388.77
  5. Step 5: Solve for x
    x = 4,753,060,388.77/79,261.98
  6. Step 6: Final answer
    x = 59,966.46

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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.