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Finding the Fourth Proportional to 334,551.80, 501,661.56 and 121,311.20

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Solution

The fourth proportional to 334,551.80, 501,661.56 and 121,311.20 is: 181,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,551.80 : 501,661.56 = 121,311.20 : x
  2. Step 2: Convert to fraction form
    334,551.80/501,661.56 = 121,311.20/x
  3. Step 3: Cross multiply
    334,551.80x = 501,661.56 × 121,311.20
  4. Step 4: Simplify right side
    334,551.80x = 60,857,165,837.47
  5. Step 5: Solve for x
    x = 60,857,165,837.47/334,551.80
  6. Step 6: Final answer
    x = 181,906.56

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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.