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Finding the Fourth Proportional to 334,533.62, 501,796.08 and 81,816.30

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Solution

The fourth proportional to 334,533.62, 501,796.08 and 81,816.30 is: 122,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,533.62 : 501,796.08 = 81,816.30 : x
  2. Step 2: Convert to fraction form
    334,533.62/501,796.08 = 81,816.30/x
  3. Step 3: Cross multiply
    334,533.62x = 501,796.08 × 81,816.30
  4. Step 4: Simplify right side
    334,533.62x = 41,055,098,620.10
  5. Step 5: Solve for x
    x = 41,055,098,620.10/334,533.62
  6. Step 6: Final answer
    x = 122,723.39

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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.