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Finding the Fourth Proportional to 109,046.16, 150,433.16 and 63,726

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Solution

The fourth proportional to 109,046.16, 150,433.16 and 63,726 is: 87,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,046.16 : 150,433.16 = 63,726 : x
  2. Step 2: Convert to fraction form
    109,046.16/150,433.16 = 63,726/x
  3. Step 3: Cross multiply
    109,046.16x = 150,433.16 × 63,726
  4. Step 4: Simplify right side
    109,046.16x = 9,586,503,554.16
  5. Step 5: Solve for x
    x = 9,586,503,554.16/109,046.16
  6. Step 6: Final answer
    x = 87,912.34

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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.