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Finding the Fourth Proportional to 330,839.49, 496,308.45 and 153,364.44

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Solution

The fourth proportional to 330,839.49, 496,308.45 and 153,364.44 is: 230,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,839.49 : 496,308.45 = 153,364.44 : x
  2. Step 2: Convert to fraction form
    330,839.49/496,308.45 = 153,364.44/x
  3. Step 3: Cross multiply
    330,839.49x = 496,308.45 × 153,364.44
  4. Step 4: Simplify right side
    330,839.49x = 76,116,067,501.52
  5. Step 5: Solve for x
    x = 76,116,067,501.52/330,839.49
  6. Step 6: Final answer
    x = 230,069.47

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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.