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Finding the Fourth Proportional to 243,486.42, 365,229.62 and 65,993.43

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Solution

The fourth proportional to 243,486.42, 365,229.62 and 65,993.43 is: 98,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,486.42 : 365,229.62 = 65,993.43 : x
  2. Step 2: Convert to fraction form
    243,486.42/365,229.62 = 65,993.43/x
  3. Step 3: Cross multiply
    243,486.42x = 365,229.62 × 65,993.43
  4. Step 4: Simplify right side
    243,486.42x = 24,102,755,361.40
  5. Step 5: Solve for x
    x = 24,102,755,361.40/243,486.42
  6. Step 6: Final answer
    x = 98,990.14

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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.