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Finding the Fourth Proportional to 299,634.96, 449,519.48 and 112,648.08

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Solution

The fourth proportional to 299,634.96, 449,519.48 and 112,648.08 is: 168,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,634.96 : 449,519.48 = 112,648.08 : x
  2. Step 2: Convert to fraction form
    299,634.96/449,519.48 = 112,648.08/x
  3. Step 3: Cross multiply
    299,634.96x = 449,519.48 × 112,648.08
  4. Step 4: Simplify right side
    299,634.96x = 50,637,506,344.60
  5. Step 5: Solve for x
    x = 50,637,506,344.60/299,634.96
  6. Step 6: Final answer
    x = 168,997.32

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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.