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Finding the Fourth Proportional to 449,617.42, 674,410.56 and 112,661.02

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Solution

The fourth proportional to 449,617.42, 674,410.56 and 112,661.02 is: 168,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,617.42 : 674,410.56 = 112,661.02 : x
  2. Step 2: Convert to fraction form
    449,617.42/674,410.56 = 112,661.02/x
  3. Step 3: Cross multiply
    449,617.42x = 674,410.56 × 112,661.02
  4. Step 4: Simplify right side
    449,617.42x = 75,979,781,588.37
  5. Step 5: Solve for x
    x = 75,979,781,588.37/449,617.42
  6. Step 6: Final answer
    x = 168,987.63

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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.