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Finding the Fourth Proportional to 374,293.71, 561,273.81 and 107,990.92

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Solution

The fourth proportional to 374,293.71, 561,273.81 and 107,990.92 is: 161,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,293.71 : 561,273.81 = 107,990.92 : x
  2. Step 2: Convert to fraction form
    374,293.71/561,273.81 = 107,990.92/x
  3. Step 3: Cross multiply
    374,293.71x = 561,273.81 × 107,990.92
  4. Step 4: Simplify right side
    374,293.71x = 60,612,475,410.43
  5. Step 5: Solve for x
    x = 60,612,475,410.43/374,293.71
  6. Step 6: Final answer
    x = 161,938.27

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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.