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Finding the Fourth Proportional to 94,129, 141,163.56 and 30,934.54

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Solution

The fourth proportional to 94,129, 141,163.56 and 30,934.54 is: 46,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,129 : 141,163.56 = 30,934.54 : x
  2. Step 2: Convert to fraction form
    94,129/141,163.56 = 30,934.54/x
  3. Step 3: Cross multiply
    94,129x = 141,163.56 × 30,934.54
  4. Step 4: Simplify right side
    94,129x = 4,366,829,793.36
  5. Step 5: Solve for x
    x = 4,366,829,793.36/94,129
  6. Step 6: Final answer
    x = 46,391.97

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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.