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Finding the Fourth Proportional to 94,044.91, 129,782 and 53,759.56

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Solution

The fourth proportional to 94,044.91, 129,782 and 53,759.56 is: 74,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,044.91 : 129,782 = 53,759.56 : x
  2. Step 2: Convert to fraction form
    94,044.91/129,782 = 53,759.56/x
  3. Step 3: Cross multiply
    94,044.91x = 129,782 × 53,759.56
  4. Step 4: Simplify right side
    94,044.91x = 6,977,023,215.92
  5. Step 5: Solve for x
    x = 6,977,023,215.92/94,044.91
  6. Step 6: Final answer
    x = 74,188.21

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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.