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Finding the Fourth Proportional to 113,843.60, 170,701.40 and 43,725.20

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Solution

The fourth proportional to 113,843.60, 170,701.40 and 43,725.20 is: 65,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,843.60 : 170,701.40 = 43,725.20 : x
  2. Step 2: Convert to fraction form
    113,843.60/170,701.40 = 43,725.20/x
  3. Step 3: Cross multiply
    113,843.60x = 170,701.40 × 43,725.20
  4. Step 4: Simplify right side
    113,843.60x = 7,463,952,855.28
  5. Step 5: Solve for x
    x = 7,463,952,855.28/113,843.60
  6. Step 6: Final answer
    x = 65,563.22

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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.