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Finding the Fourth Proportional to 339,768.68, 468,889.78 and 186,813.26

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Solution

The fourth proportional to 339,768.68, 468,889.78 and 186,813.26 is: 257,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,768.68 : 468,889.78 = 186,813.26 : x
  2. Step 2: Convert to fraction form
    339,768.68/468,889.78 = 186,813.26/x
  3. Step 3: Cross multiply
    339,768.68x = 468,889.78 × 186,813.26
  4. Step 4: Simplify right side
    339,768.68x = 87,594,828,382.48
  5. Step 5: Solve for x
    x = 87,594,828,382.48/339,768.68
  6. Step 6: Final answer
    x = 257,807.25

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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.