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Finding the Fourth Proportional to 550,021.47, 825,032.86 and 150,665.68

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Solution

The fourth proportional to 550,021.47, 825,032.86 and 150,665.68 is: 225,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,021.47 : 825,032.86 = 150,665.68 : x
  2. Step 2: Convert to fraction form
    550,021.47/825,032.86 = 150,665.68/x
  3. Step 3: Cross multiply
    550,021.47x = 825,032.86 × 150,665.68
  4. Step 4: Simplify right side
    550,021.47x = 124,304,136,874.25
  5. Step 5: Solve for x
    x = 124,304,136,874.25/550,021.47
  6. Step 6: Final answer
    x = 225,998.70

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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.