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Finding the Fourth Proportional to 374,123.79, 561,268.61 and 107,863.53

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Solution

The fourth proportional to 374,123.79, 561,268.61 and 107,863.53 is: 161,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,123.79 : 561,268.61 = 107,863.53 : x
  2. Step 2: Convert to fraction form
    374,123.79/561,268.61 = 107,863.53/x
  3. Step 3: Cross multiply
    374,123.79x = 561,268.61 × 107,863.53
  4. Step 4: Simplify right side
    374,123.79x = 60,540,413,552.79
  5. Step 5: Solve for x
    x = 60,540,413,552.79/374,123.79
  6. Step 6: Final answer
    x = 161,819.20

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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.