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Finding the Fourth Proportional to 423,816.84, 635,723.64 and 108,273.24

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Solution

The fourth proportional to 423,816.84, 635,723.64 and 108,273.24 is: 162,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,816.84 : 635,723.64 = 108,273.24 : x
  2. Step 2: Convert to fraction form
    423,816.84/635,723.64 = 108,273.24/x
  3. Step 3: Cross multiply
    423,816.84x = 635,723.64 × 108,273.24
  4. Step 4: Simplify right side
    423,816.84x = 68,831,858,247.39
  5. Step 5: Solve for x
    x = 68,831,858,247.39/423,816.84
  6. Step 6: Final answer
    x = 162,409.45

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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.