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Finding the Fourth Proportional to 322,953.24, 484,479.06 and 165,128.40

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Solution

The fourth proportional to 322,953.24, 484,479.06 and 165,128.40 is: 247,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,953.24 : 484,479.06 = 165,128.40 : x
  2. Step 2: Convert to fraction form
    322,953.24/484,479.06 = 165,128.40/x
  3. Step 3: Cross multiply
    322,953.24x = 484,479.06 × 165,128.40
  4. Step 4: Simplify right side
    322,953.24x = 80,001,252,011.30
  5. Step 5: Solve for x
    x = 80,001,252,011.30/322,953.24
  6. Step 6: Final answer
    x = 247,717.76

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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.