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Finding the Fourth Proportional to 84,263.97, 126,243.66 and 52,658.86

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Solution

The fourth proportional to 84,263.97, 126,243.66 and 52,658.86 is: 78,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,263.97 : 126,243.66 = 52,658.86 : x
  2. Step 2: Convert to fraction form
    84,263.97/126,243.66 = 52,658.86/x
  3. Step 3: Cross multiply
    84,263.97x = 126,243.66 × 52,658.86
  4. Step 4: Simplify right side
    84,263.97x = 6,647,847,336.40
  5. Step 5: Solve for x
    x = 6,647,847,336.40/84,263.97
  6. Step 6: Final answer
    x = 78,893.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.