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Finding the Fourth Proportional to 296,644.80, 444,963.28 and 72,007

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Solution

The fourth proportional to 296,644.80, 444,963.28 and 72,007 is: 108,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,644.80 : 444,963.28 = 72,007 : x
  2. Step 2: Convert to fraction form
    296,644.80/444,963.28 = 72,007/x
  3. Step 3: Cross multiply
    296,644.80x = 444,963.28 × 72,007
  4. Step 4: Simplify right side
    296,644.80x = 32,040,470,902.96
  5. Step 5: Solve for x
    x = 32,040,470,902.96/296,644.80
  6. Step 6: Final answer
    x = 108,009.55

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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.