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Finding the Fourth Proportional to 242,589.33, 363,939.35 and 74,133.60

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Solution

The fourth proportional to 242,589.33, 363,939.35 and 74,133.60 is: 111,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,589.33 : 363,939.35 = 74,133.60 : x
  2. Step 2: Convert to fraction form
    242,589.33/363,939.35 = 74,133.60/x
  3. Step 3: Cross multiply
    242,589.33x = 363,939.35 × 74,133.60
  4. Step 4: Simplify right side
    242,589.33x = 26,980,136,157.96
  5. Step 5: Solve for x
    x = 26,980,136,157.96/242,589.33
  6. Step 6: Final answer
    x = 111,217.32

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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.