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Finding the Fourth Proportional to 94,115.62, 129,879.81 and 51,676.90

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Solution

The fourth proportional to 94,115.62, 129,879.81 and 51,676.90 is: 71,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,115.62 : 129,879.81 = 51,676.90 : x
  2. Step 2: Convert to fraction form
    94,115.62/129,879.81 = 51,676.90/x
  3. Step 3: Cross multiply
    94,115.62x = 129,879.81 × 51,676.90
  4. Step 4: Simplify right side
    94,115.62x = 6,711,785,953.39
  5. Step 5: Solve for x
    x = 6,711,785,953.39/94,115.62
  6. Step 6: Final answer
    x = 71,314.26

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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.