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Finding the Fourth Proportional to 252,005.78, 377,877.42 and 118,850.28

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Solution

The fourth proportional to 252,005.78, 377,877.42 and 118,850.28 is: 178,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,005.78 : 377,877.42 = 118,850.28 : x
  2. Step 2: Convert to fraction form
    252,005.78/377,877.42 = 118,850.28/x
  3. Step 3: Cross multiply
    252,005.78x = 377,877.42 × 118,850.28
  4. Step 4: Simplify right side
    252,005.78x = 44,910,837,172.68
  5. Step 5: Solve for x
    x = 44,910,837,172.68/252,005.78
  6. Step 6: Final answer
    x = 178,213.52

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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.