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Finding the Fourth Proportional to 384,362.43, 576,043.56 and 156,392.37

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Solution

The fourth proportional to 384,362.43, 576,043.56 and 156,392.37 is: 234,385.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,362.43 : 576,043.56 = 156,392.37 : x
  2. Step 2: Convert to fraction form
    384,362.43/576,043.56 = 156,392.37/x
  3. Step 3: Cross multiply
    384,362.43x = 576,043.56 × 156,392.37
  4. Step 4: Simplify right side
    384,362.43x = 90,088,816,789.68
  5. Step 5: Solve for x
    x = 90,088,816,789.68/384,362.43
  6. Step 6: Final answer
    x = 234,385.08

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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.