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Finding the Fourth Proportional to 299,381.60, 449,072.40 and 193,093.40

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Solution

The fourth proportional to 299,381.60, 449,072.40 and 193,093.40 is: 289,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,381.60 : 449,072.40 = 193,093.40 : x
  2. Step 2: Convert to fraction form
    299,381.60/449,072.40 = 193,093.40/x
  3. Step 3: Cross multiply
    299,381.60x = 449,072.40 × 193,093.40
  4. Step 4: Simplify right side
    299,381.60x = 86,712,916,562.16
  5. Step 5: Solve for x
    x = 86,712,916,562.16/299,381.60
  6. Step 6: Final answer
    x = 289,640.10

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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.