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Finding the Fourth Proportional to 243,712.66, 336,361.53 and 148,249.30

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Solution

The fourth proportional to 243,712.66, 336,361.53 and 148,249.30 is: 204,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,712.66 : 336,361.53 = 148,249.30 : x
  2. Step 2: Convert to fraction form
    243,712.66/336,361.53 = 148,249.30/x
  3. Step 3: Cross multiply
    243,712.66x = 336,361.53 × 148,249.30
  4. Step 4: Simplify right side
    243,712.66x = 49,865,361,369.43
  5. Step 5: Solve for x
    x = 49,865,361,369.43/243,712.66
  6. Step 6: Final answer
    x = 204,607.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.