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Finding the Fourth Proportional to 299,640.96, 449,528.40 and 112,654.08

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Solution

The fourth proportional to 299,640.96, 449,528.40 and 112,654.08 is: 169,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,640.96 : 449,528.40 = 112,654.08 : x
  2. Step 2: Convert to fraction form
    299,640.96/449,528.40 = 112,654.08/x
  3. Step 3: Cross multiply
    299,640.96x = 449,528.40 × 112,654.08
  4. Step 4: Simplify right side
    299,640.96x = 50,641,208,335.87
  5. Step 5: Solve for x
    x = 50,641,208,335.87/299,640.96
  6. Step 6: Final answer
    x = 169,006.29

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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.