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Finding the Fourth Proportional to 382,858.45, 574,369.72 and 116,640.41

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Solution

The fourth proportional to 382,858.45, 574,369.72 and 116,640.41 is: 174,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,858.45 : 574,369.72 = 116,640.41 : x
  2. Step 2: Convert to fraction form
    382,858.45/574,369.72 = 116,640.41/x
  3. Step 3: Cross multiply
    382,858.45x = 574,369.72 × 116,640.41
  4. Step 4: Simplify right side
    382,858.45x = 66,994,716,468.94
  5. Step 5: Solve for x
    x = 66,994,716,468.94/382,858.45
  6. Step 6: Final answer
    x = 174,985.60

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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.