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Finding the Fourth Proportional to 257,801.94, 355,769.11 and 144,627.12

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Solution

The fourth proportional to 257,801.94, 355,769.11 and 144,627.12 is: 199,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,801.94 : 355,769.11 = 144,627.12 : x
  2. Step 2: Convert to fraction form
    257,801.94/355,769.11 = 144,627.12/x
  3. Step 3: Cross multiply
    257,801.94x = 355,769.11 × 144,627.12
  4. Step 4: Simplify right side
    257,801.94x = 51,453,861,764.26
  5. Step 5: Solve for x
    x = 51,453,861,764.26/257,801.94
  6. Step 6: Final answer
    x = 199,586.79

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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.