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Finding the Fourth Proportional to 253,544.43, 380,507.94 and 173,390.88

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Solution

The fourth proportional to 253,544.43, 380,507.94 and 173,390.88 is: 260,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,544.43 : 380,507.94 = 173,390.88 : x
  2. Step 2: Convert to fraction form
    253,544.43/380,507.94 = 173,390.88/x
  3. Step 3: Cross multiply
    253,544.43x = 380,507.94 × 173,390.88
  4. Step 4: Simplify right side
    253,544.43x = 65,976,606,563.59
  5. Step 5: Solve for x
    x = 65,976,606,563.59/253,544.43
  6. Step 6: Final answer
    x = 260,217.14

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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.