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Finding the Fourth Proportional to 111,236.76, 153,517.73 and 63,497.28

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Solution

The fourth proportional to 111,236.76, 153,517.73 and 63,497.28 is: 87,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,236.76 : 153,517.73 = 63,497.28 : x
  2. Step 2: Convert to fraction form
    111,236.76/153,517.73 = 63,497.28/x
  3. Step 3: Cross multiply
    111,236.76x = 153,517.73 × 63,497.28
  4. Step 4: Simplify right side
    111,236.76x = 9,747,957,969.29
  5. Step 5: Solve for x
    x = 9,747,957,969.29/111,236.76
  6. Step 6: Final answer
    x = 87,632.52

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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.