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Finding the Fourth Proportional to 163,515.24, 244,928.16 and 74,843.28

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Solution

The fourth proportional to 163,515.24, 244,928.16 and 74,843.28 is: 112,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,515.24 : 244,928.16 = 74,843.28 : x
  2. Step 2: Convert to fraction form
    163,515.24/244,928.16 = 74,843.28/x
  3. Step 3: Cross multiply
    163,515.24x = 244,928.16 × 74,843.28
  4. Step 4: Simplify right side
    163,515.24x = 18,331,226,858.76
  5. Step 5: Solve for x
    x = 18,331,226,858.76/163,515.24
  6. Step 6: Final answer
    x = 112,107.15

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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.