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Finding the Fourth Proportional to 331,684.43, 457,724.66 and 188,444.70

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Solution

The fourth proportional to 331,684.43, 457,724.66 and 188,444.70 is: 260,053.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,684.43 : 457,724.66 = 188,444.70 : x
  2. Step 2: Convert to fraction form
    331,684.43/457,724.66 = 188,444.70/x
  3. Step 3: Cross multiply
    331,684.43x = 457,724.66 × 188,444.70
  4. Step 4: Simplify right side
    331,684.43x = 86,255,785,294.08
  5. Step 5: Solve for x
    x = 86,255,785,294.08/331,684.43
  6. Step 6: Final answer
    x = 260,053.77

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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.