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Finding the Fourth Proportional to 267,378.69, 401,118.66 and 107,467.08

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Solution

The fourth proportional to 267,378.69, 401,118.66 and 107,467.08 is: 161,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,378.69 : 401,118.66 = 107,467.08 : x
  2. Step 2: Convert to fraction form
    267,378.69/401,118.66 = 107,467.08/x
  3. Step 3: Cross multiply
    267,378.69x = 401,118.66 × 107,467.08
  4. Step 4: Simplify right side
    267,378.69x = 43,107,051,123.71
  5. Step 5: Solve for x
    x = 43,107,051,123.71/267,378.69
  6. Step 6: Final answer
    x = 161,220.97

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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.