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Finding the Fourth Proportional to 543,953.90, 815,737.79 and 159,595.49

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Solution

The fourth proportional to 543,953.90, 815,737.79 and 159,595.49 is: 239,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,953.90 : 815,737.79 = 159,595.49 : x
  2. Step 2: Convert to fraction form
    543,953.90/815,737.79 = 159,595.49/x
  3. Step 3: Cross multiply
    543,953.90x = 815,737.79 × 159,595.49
  4. Step 4: Simplify right side
    543,953.90x = 130,188,067,429.90
  5. Step 5: Solve for x
    x = 130,188,067,429.90/543,953.90
  6. Step 6: Final answer
    x = 239,336.58

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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.