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Finding the Fourth Proportional to 79,046.74, 109,129.63 and 52,266.92

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Solution

The fourth proportional to 79,046.74, 109,129.63 and 52,266.92 is: 72,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,046.74 : 109,129.63 = 52,266.92 : x
  2. Step 2: Convert to fraction form
    79,046.74/109,129.63 = 52,266.92/x
  3. Step 3: Cross multiply
    79,046.74x = 109,129.63 × 52,266.92
  4. Step 4: Simplify right side
    79,046.74x = 5,703,869,676.38
  5. Step 5: Solve for x
    x = 5,703,869,676.38/79,046.74
  6. Step 6: Final answer
    x = 72,158.19

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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.