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Finding the Fourth Proportional to 252,128.03, 378,192.04 and 252,128.03

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Solution

The fourth proportional to 252,128.03, 378,192.04 and 252,128.03 is: 378,192.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,128.03 : 378,192.04 = 252,128.03 : x
  2. Step 2: Convert to fraction form
    252,128.03/378,192.04 = 252,128.03/x
  3. Step 3: Cross multiply
    252,128.03x = 378,192.04 × 252,128.03
  4. Step 4: Simplify right side
    252,128.03x = 95,352,811,485.60
  5. Step 5: Solve for x
    x = 95,352,811,485.60/252,128.03
  6. Step 6: Final answer
    x = 378,192.04

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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.