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Finding the Fourth Proportional to 215,479.76, 323,069.46 and 95,471.48

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Solution

The fourth proportional to 215,479.76, 323,069.46 and 95,471.48 is: 143,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,479.76 : 323,069.46 = 95,471.48 : x
  2. Step 2: Convert to fraction form
    215,479.76/323,069.46 = 95,471.48/x
  3. Step 3: Cross multiply
    215,479.76x = 323,069.46 × 95,471.48
  4. Step 4: Simplify right side
    215,479.76x = 30,843,919,489.00
  5. Step 5: Solve for x
    x = 30,843,919,489.00/215,479.76
  6. Step 6: Final answer
    x = 143,140.68

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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.