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Finding the Fourth Proportional to 374,121.79, 561,265.61 and 107,861.52

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Solution

The fourth proportional to 374,121.79, 561,265.61 and 107,861.52 is: 161,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,121.79 : 561,265.61 = 107,861.52 : x
  2. Step 2: Convert to fraction form
    374,121.79/561,265.61 = 107,861.52/x
  3. Step 3: Cross multiply
    374,121.79x = 561,265.61 × 107,861.52
  4. Step 4: Simplify right side
    374,121.79x = 60,538,963,383.77
  5. Step 5: Solve for x
    x = 60,538,963,383.77/374,121.79
  6. Step 6: Final answer
    x = 161,816.19

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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.