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Finding the Fourth Proportional to 94,134.72, 129,906 and 51,695.40

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Solution

The fourth proportional to 94,134.72, 129,906 and 51,695.40 is: 71,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,134.72 : 129,906 = 51,695.40 : x
  2. Step 2: Convert to fraction form
    94,134.72/129,906 = 51,695.40/x
  3. Step 3: Cross multiply
    94,134.72x = 129,906 × 51,695.40
  4. Step 4: Simplify right side
    94,134.72x = 6,715,542,632.40
  5. Step 5: Solve for x
    x = 6,715,542,632.40/94,134.72
  6. Step 6: Final answer
    x = 71,339.70

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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.