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Finding the Fourth Proportional to 113,383.44, 156,452.04 and 65,641.50

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Solution

The fourth proportional to 113,383.44, 156,452.04 and 65,641.50 is: 90,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,383.44 : 156,452.04 = 65,641.50 : x
  2. Step 2: Convert to fraction form
    113,383.44/156,452.04 = 65,641.50/x
  3. Step 3: Cross multiply
    113,383.44x = 156,452.04 × 65,641.50
  4. Step 4: Simplify right side
    113,383.44x = 10,269,746,583.66
  5. Step 5: Solve for x
    x = 10,269,746,583.66/113,383.44
  6. Step 6: Final answer
    x = 90,575.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.