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Finding the Fourth Proportional to 199,712.63, 275,476.87 and 151,861.07

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Solution

The fourth proportional to 199,712.63, 275,476.87 and 151,861.07 is: 209,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,712.63 : 275,476.87 = 151,861.07 : x
  2. Step 2: Convert to fraction form
    199,712.63/275,476.87 = 151,861.07/x
  3. Step 3: Cross multiply
    199,712.63x = 275,476.87 × 151,861.07
  4. Step 4: Simplify right side
    199,712.63x = 41,834,212,238.45
  5. Step 5: Solve for x
    x = 41,834,212,238.45/199,712.63
  6. Step 6: Final answer
    x = 209,472.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.