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Finding the Fourth Proportional to 542,361.69, 813,450.03 and 143,006.37

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Solution

The fourth proportional to 542,361.69, 813,450.03 and 143,006.37 is: 214,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,361.69 : 813,450.03 = 143,006.37 : x
  2. Step 2: Convert to fraction form
    542,361.69/813,450.03 = 143,006.37/x
  3. Step 3: Cross multiply
    542,361.69x = 813,450.03 × 143,006.37
  4. Step 4: Simplify right side
    542,361.69x = 116,328,535,966.69
  5. Step 5: Solve for x
    x = 116,328,535,966.69/542,361.69
  6. Step 6: Final answer
    x = 214,485.16

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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.