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Finding the Fourth Proportional to 255,190.92, 352,163.61 and 147,766.65

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Solution

The fourth proportional to 255,190.92, 352,163.61 and 147,766.65 is: 203,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,190.92 : 352,163.61 = 147,766.65 : x
  2. Step 2: Convert to fraction form
    255,190.92/352,163.61 = 147,766.65/x
  3. Step 3: Cross multiply
    255,190.92x = 352,163.61 × 147,766.65
  4. Step 4: Simplify right side
    255,190.92x = 52,038,036,901.61
  5. Step 5: Solve for x
    x = 52,038,036,901.61/255,190.92
  6. Step 6: Final answer
    x = 203,918.06

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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.