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Finding the Fourth Proportional to 335,694.69, 503,486.68 and 107,978.91

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Solution

The fourth proportional to 335,694.69, 503,486.68 and 107,978.91 is: 161,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,694.69 : 503,486.68 = 107,978.91 : x
  2. Step 2: Convert to fraction form
    335,694.69/503,486.68 = 107,978.91/x
  3. Step 3: Cross multiply
    335,694.69x = 503,486.68 × 107,978.91
  4. Step 4: Simplify right side
    335,694.69x = 54,365,943,624.74
  5. Step 5: Solve for x
    x = 54,365,943,624.74/335,694.69
  6. Step 6: Final answer
    x = 161,950.56

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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.