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Finding the Fourth Proportional to 374,294.71, 561,275.31 and 107,991.92

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Solution

The fourth proportional to 374,294.71, 561,275.31 and 107,991.92 is: 161,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,294.71 : 561,275.31 = 107,991.92 : x
  2. Step 2: Convert to fraction form
    374,294.71/561,275.31 = 107,991.92/x
  3. Step 3: Cross multiply
    374,294.71x = 561,275.31 × 107,991.92
  4. Step 4: Simplify right side
    374,294.71x = 60,613,198,375.50
  5. Step 5: Solve for x
    x = 60,613,198,375.50/374,294.71
  6. Step 6: Final answer
    x = 161,939.77

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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.