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Finding the Fourth Proportional to 323,158.01, 484,512.17 and 143,145.70

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Solution

The fourth proportional to 323,158.01, 484,512.17 and 143,145.70 is: 214,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,158.01 : 484,512.17 = 143,145.70 : x
  2. Step 2: Convert to fraction form
    323,158.01/484,512.17 = 143,145.70/x
  3. Step 3: Cross multiply
    323,158.01x = 484,512.17 × 143,145.70
  4. Step 4: Simplify right side
    323,158.01x = 69,355,831,806.16
  5. Step 5: Solve for x
    x = 69,355,831,806.16/323,158.01
  6. Step 6: Final answer
    x = 214,618.95

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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.