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Finding the Fourth Proportional to 252,003.40, 378,588.30 and 173,271.40

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Solution

The fourth proportional to 252,003.40, 378,588.30 and 173,271.40 is: 260,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,003.40 : 378,588.30 = 173,271.40 : x
  2. Step 2: Convert to fraction form
    252,003.40/378,588.30 = 173,271.40/x
  3. Step 3: Cross multiply
    252,003.40x = 378,588.30 × 173,271.40
  4. Step 4: Simplify right side
    252,003.40x = 65,598,524,764.62
  5. Step 5: Solve for x
    x = 65,598,524,764.62/252,003.40
  6. Step 6: Final answer
    x = 260,308.09

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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.