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Finding the Fourth Proportional to 79,108.58, 119,213.24 and 71,614.46

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Solution

The fourth proportional to 79,108.58, 119,213.24 and 71,614.46 is: 107,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,108.58 : 119,213.24 = 71,614.46 : x
  2. Step 2: Convert to fraction form
    79,108.58/119,213.24 = 71,614.46/x
  3. Step 3: Cross multiply
    79,108.58x = 119,213.24 × 71,614.46
  4. Step 4: Simplify right side
    79,108.58x = 8,537,391,807.45
  5. Step 5: Solve for x
    x = 8,537,391,807.45/79,108.58
  6. Step 6: Final answer
    x = 107,919.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.