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Finding the Fourth Proportional to 330,953.66, 496,331.52 and 120,542.39

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Solution

The fourth proportional to 330,953.66, 496,331.52 and 120,542.39 is: 180,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,953.66 : 496,331.52 = 120,542.39 : x
  2. Step 2: Convert to fraction form
    330,953.66/496,331.52 = 120,542.39/x
  3. Step 3: Cross multiply
    330,953.66x = 496,331.52 × 120,542.39
  4. Step 4: Simplify right side
    330,953.66x = 59,828,985,171.48
  5. Step 5: Solve for x
    x = 59,828,985,171.48/330,953.66
  6. Step 6: Final answer
    x = 180,777.53

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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.