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Finding the Fourth Proportional to 374,562.60, 561,916.80 and 108,331.80

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Solution

The fourth proportional to 374,562.60, 561,916.80 and 108,331.80 is: 162,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,562.60 : 561,916.80 = 108,331.80 : x
  2. Step 2: Convert to fraction form
    374,562.60/561,916.80 = 108,331.80/x
  3. Step 3: Cross multiply
    374,562.60x = 561,916.80 × 108,331.80
  4. Step 4: Simplify right side
    374,562.60x = 60,873,458,394.24
  5. Step 5: Solve for x
    x = 60,873,458,394.24/374,562.60
  6. Step 6: Final answer
    x = 162,518.78

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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.