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Finding the Fourth Proportional to 526,361.84, 789,535.43 and 126,999.26

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Solution

The fourth proportional to 526,361.84, 789,535.43 and 126,999.26 is: 190,497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,361.84 : 789,535.43 = 126,999.26 : x
  2. Step 2: Convert to fraction form
    526,361.84/789,535.43 = 126,999.26/x
  3. Step 3: Cross multiply
    526,361.84x = 789,535.43 × 126,999.26
  4. Step 4: Simplify right side
    526,361.84x = 100,270,414,718.79
  5. Step 5: Solve for x
    x = 100,270,414,718.79/526,361.84
  6. Step 6: Final answer
    x = 190,497.12

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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.