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Finding the Fourth Proportional to 79,530.57, 109,754.29 and 43,234.46

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Solution

The fourth proportional to 79,530.57, 109,754.29 and 43,234.46 is: 59,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,530.57 : 109,754.29 = 43,234.46 : x
  2. Step 2: Convert to fraction form
    79,530.57/109,754.29 = 43,234.46/x
  3. Step 3: Cross multiply
    79,530.57x = 109,754.29 × 43,234.46
  4. Step 4: Simplify right side
    79,530.57x = 4,745,167,024.32
  5. Step 5: Solve for x
    x = 4,745,167,024.32/79,530.57
  6. Step 6: Final answer
    x = 59,664.69

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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.