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Finding the Fourth Proportional to 374,593.96, 561,628.32 and 137,905.84

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Solution

The fourth proportional to 374,593.96, 561,628.32 and 137,905.84 is: 206,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,593.96 : 561,628.32 = 137,905.84 : x
  2. Step 2: Convert to fraction form
    374,593.96/561,628.32 = 137,905.84/x
  3. Step 3: Cross multiply
    374,593.96x = 561,628.32 × 137,905.84
  4. Step 4: Simplify right side
    374,593.96x = 77,451,825,237.39
  5. Step 5: Solve for x
    x = 77,451,825,237.39/374,593.96
  6. Step 6: Final answer
    x = 206,762.08

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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.