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Finding the Fourth Proportional to 257,414.52, 355,021.42 and 181,185.96

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Solution

The fourth proportional to 257,414.52, 355,021.42 and 181,185.96 is: 249,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,414.52 : 355,021.42 = 181,185.96 : x
  2. Step 2: Convert to fraction form
    257,414.52/355,021.42 = 181,185.96/x
  3. Step 3: Cross multiply
    257,414.52x = 355,021.42 × 181,185.96
  4. Step 4: Simplify right side
    257,414.52x = 64,324,896,803.26
  5. Step 5: Solve for x
    x = 64,324,896,803.26/257,414.52
  6. Step 6: Final answer
    x = 249,888.38

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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.