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Finding the Fourth Proportional to 322,953.20, 484,211.10 and 165,051.80

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Solution

The fourth proportional to 322,953.20, 484,211.10 and 165,051.80 is: 247,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,953.20 : 484,211.10 = 165,051.80 : x
  2. Step 2: Convert to fraction form
    322,953.20/484,211.10 = 165,051.80/x
  3. Step 3: Cross multiply
    322,953.20x = 484,211.10 × 165,051.80
  4. Step 4: Simplify right side
    322,953.20x = 79,919,913,634.98
  5. Step 5: Solve for x
    x = 79,919,913,634.98/322,953.20
  6. Step 6: Final answer
    x = 247,465.93

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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.