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Finding the Fourth Proportional to 361,773.87, 542,686.16 and 109,056.43

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Solution

The fourth proportional to 361,773.87, 542,686.16 and 109,056.43 is: 163,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,773.87 : 542,686.16 = 109,056.43 : x
  2. Step 2: Convert to fraction form
    361,773.87/542,686.16 = 109,056.43/x
  3. Step 3: Cross multiply
    361,773.87x = 542,686.16 × 109,056.43
  4. Step 4: Simplify right side
    361,773.87x = 59,183,416,171.01
  5. Step 5: Solve for x
    x = 59,183,416,171.01/361,773.87
  6. Step 6: Final answer
    x = 163,592.29

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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.