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Finding the Fourth Proportional to 76,633.26, 114,940.17 and 56,940.54

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Solution

The fourth proportional to 76,633.26, 114,940.17 and 56,940.54 is: 85,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,633.26 : 114,940.17 = 56,940.54 : x
  2. Step 2: Convert to fraction form
    76,633.26/114,940.17 = 56,940.54/x
  3. Step 3: Cross multiply
    76,633.26x = 114,940.17 × 56,940.54
  4. Step 4: Simplify right side
    76,633.26x = 6,544,755,347.49
  5. Step 5: Solve for x
    x = 6,544,755,347.49/76,633.26
  6. Step 6: Final answer
    x = 85,403.59

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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.