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Finding the Fourth Proportional to 321,963.93, 482,945.93 and 111,601.87

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Solution

The fourth proportional to 321,963.93, 482,945.93 and 111,601.87 is: 167,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,963.93 : 482,945.93 = 111,601.87 : x
  2. Step 2: Convert to fraction form
    321,963.93/482,945.93 = 111,601.87/x
  3. Step 3: Cross multiply
    321,963.93x = 482,945.93 × 111,601.87
  4. Step 4: Simplify right side
    321,963.93x = 53,897,668,896.89
  5. Step 5: Solve for x
    x = 53,897,668,896.89/321,963.93
  6. Step 6: Final answer
    x = 167,402.82

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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.