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Finding the Fourth Proportional to 235,163.72, 352,721.54 and 64,400.61

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Solution

The fourth proportional to 235,163.72, 352,721.54 and 64,400.61 is: 96,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,163.72 : 352,721.54 = 64,400.61 : x
  2. Step 2: Convert to fraction form
    235,163.72/352,721.54 = 64,400.61/x
  3. Step 3: Cross multiply
    235,163.72x = 352,721.54 × 64,400.61
  4. Step 4: Simplify right side
    235,163.72x = 22,715,482,014.14
  5. Step 5: Solve for x
    x = 22,715,482,014.14/235,163.72
  6. Step 6: Final answer
    x = 96,594.33

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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.