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Finding the Fourth Proportional to 112,732.44, 168,830.34 and 65,247.54

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Solution

The fourth proportional to 112,732.44, 168,830.34 and 65,247.54 is: 97,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,732.44 : 168,830.34 = 65,247.54 : x
  2. Step 2: Convert to fraction form
    112,732.44/168,830.34 = 65,247.54/x
  3. Step 3: Cross multiply
    112,732.44x = 168,830.34 × 65,247.54
  4. Step 4: Simplify right side
    112,732.44x = 11,015,764,362.36
  5. Step 5: Solve for x
    x = 11,015,764,362.36/112,732.44
  6. Step 6: Final answer
    x = 97,716.01

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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.