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Finding the Fourth Proportional to 252,566.02, 378,911.49 and 75,072.30

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Solution

The fourth proportional to 252,566.02, 378,911.49 and 75,072.30 is: 112,627.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,566.02 : 378,911.49 = 75,072.30 : x
  2. Step 2: Convert to fraction form
    252,566.02/378,911.49 = 75,072.30/x
  3. Step 3: Cross multiply
    252,566.02x = 378,911.49 × 75,072.30
  4. Step 4: Simplify right side
    252,566.02x = 28,445,757,050.73
  5. Step 5: Solve for x
    x = 28,445,757,050.73/252,566.02
  6. Step 6: Final answer
    x = 112,627.02

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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.