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Finding the Fourth Proportional to 79,497.72, 109,706.13 and 43,198.92

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Solution

The fourth proportional to 79,497.72, 109,706.13 and 43,198.92 is: 59,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,497.72 : 109,706.13 = 43,198.92 : x
  2. Step 2: Convert to fraction form
    79,497.72/109,706.13 = 43,198.92/x
  3. Step 3: Cross multiply
    79,497.72x = 109,706.13 × 43,198.92
  4. Step 4: Simplify right side
    79,497.72x = 4,739,186,333.38
  5. Step 5: Solve for x
    x = 4,739,186,333.38/79,497.72
  6. Step 6: Final answer
    x = 59,614.12

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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.