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Finding the Fourth Proportional to 355,408.53, 533,206.25 and 127,727.13

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Solution

The fourth proportional to 355,408.53, 533,206.25 and 127,727.13 is: 191,624.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,408.53 : 533,206.25 = 127,727.13 : x
  2. Step 2: Convert to fraction form
    355,408.53/533,206.25 = 127,727.13/x
  3. Step 3: Cross multiply
    355,408.53x = 533,206.25 × 127,727.13
  4. Step 4: Simplify right side
    355,408.53x = 68,104,904,010.56
  5. Step 5: Solve for x
    x = 68,104,904,010.56/355,408.53
  6. Step 6: Final answer
    x = 191,624.28

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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.