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Finding the Fourth Proportional to 355,409.24, 533,207.24 and 127,727.85

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Solution

The fourth proportional to 355,409.24, 533,207.24 and 127,727.85 is: 191,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,409.24 : 533,207.24 = 127,727.85 : x
  2. Step 2: Convert to fraction form
    355,409.24/533,207.24 = 127,727.85/x
  3. Step 3: Cross multiply
    355,409.24x = 533,207.24 × 127,727.85
  4. Step 4: Simplify right side
    355,409.24x = 68,105,414,876.48
  5. Step 5: Solve for x
    x = 68,105,414,876.48/355,409.24
  6. Step 6: Final answer
    x = 191,625.33

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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.