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Finding the Fourth Proportional to 259,269.52, 388,896.99 and 141,685.48

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Solution

The fourth proportional to 259,269.52, 388,896.99 and 141,685.48 is: 212,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,269.52 : 388,896.99 = 141,685.48 : x
  2. Step 2: Convert to fraction form
    259,269.52/388,896.99 = 141,685.48/x
  3. Step 3: Cross multiply
    259,269.52x = 388,896.99 × 141,685.48
  4. Step 4: Simplify right side
    259,269.52x = 55,101,056,698.71
  5. Step 5: Solve for x
    x = 55,101,056,698.71/259,269.52
  6. Step 6: Final answer
    x = 212,524.24

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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.