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Finding the Fourth Proportional to 330,926.96, 496,377.48 and 81,602.48

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Solution

The fourth proportional to 330,926.96, 496,377.48 and 81,602.48 is: 122,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,926.96 : 496,377.48 = 81,602.48 : x
  2. Step 2: Convert to fraction form
    330,926.96/496,377.48 = 81,602.48/x
  3. Step 3: Cross multiply
    330,926.96x = 496,377.48 × 81,602.48
  4. Step 4: Simplify right side
    330,926.96x = 40,505,633,384.15
  5. Step 5: Solve for x
    x = 40,505,633,384.15/330,926.96
  6. Step 6: Final answer
    x = 122,400.52

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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.