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Finding the Fourth Proportional to 436,603.12, 654,858.62 and 116,787.26

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Solution

The fourth proportional to 436,603.12, 654,858.62 and 116,787.26 is: 175,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,603.12 : 654,858.62 = 116,787.26 : x
  2. Step 2: Convert to fraction form
    436,603.12/654,858.62 = 116,787.26/x
  3. Step 3: Cross multiply
    436,603.12x = 654,858.62 × 116,787.26
  4. Step 4: Simplify right side
    436,603.12x = 76,479,145,846.30
  5. Step 5: Solve for x
    x = 76,479,145,846.30/436,603.12
  6. Step 6: Final answer
    x = 175,168.57

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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.