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Finding the Fourth Proportional to 112,447.80, 168,563.70 and 65,014.20

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Solution

The fourth proportional to 112,447.80, 168,563.70 and 65,014.20 is: 97,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,447.80 : 168,563.70 = 65,014.20 : x
  2. Step 2: Convert to fraction form
    112,447.80/168,563.70 = 65,014.20/x
  3. Step 3: Cross multiply
    112,447.80x = 168,563.70 × 65,014.20
  4. Step 4: Simplify right side
    112,447.80x = 10,959,034,104.54
  5. Step 5: Solve for x
    x = 10,959,034,104.54/112,447.80
  6. Step 6: Final answer
    x = 97,458.86

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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.