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Finding the Fourth Proportional to 79,517.95, 109,741.77 and 43,714.90

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Solution

The fourth proportional to 79,517.95, 109,741.77 and 43,714.90 is: 60,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.95 : 109,741.77 = 43,714.90 : x
  2. Step 2: Convert to fraction form
    79,517.95/109,741.77 = 43,714.90/x
  3. Step 3: Cross multiply
    79,517.95x = 109,741.77 × 43,714.90
  4. Step 4: Simplify right side
    79,517.95x = 4,797,350,501.37
  5. Step 5: Solve for x
    x = 4,797,350,501.37/79,517.95
  6. Step 6: Final answer
    x = 60,330.41

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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.