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Finding the Fourth Proportional to 299,385.51, 449,084.65 and 107,272.49

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Solution

The fourth proportional to 299,385.51, 449,084.65 and 107,272.49 is: 160,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,385.51 : 449,084.65 = 107,272.49 : x
  2. Step 2: Convert to fraction form
    299,385.51/449,084.65 = 107,272.49/x
  3. Step 3: Cross multiply
    299,385.51x = 449,084.65 × 107,272.49
  4. Step 4: Simplify right side
    299,385.51x = 48,174,425,844.49
  5. Step 5: Solve for x
    x = 48,174,425,844.49/299,385.51
  6. Step 6: Final answer
    x = 160,911.01

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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.