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Finding the Fourth Proportional to 78,695.88, 118,025.28 and 22,535.16

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Solution

The fourth proportional to 78,695.88, 118,025.28 and 22,535.16 is: 33,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,695.88 : 118,025.28 = 22,535.16 : x
  2. Step 2: Convert to fraction form
    78,695.88/118,025.28 = 22,535.16/x
  3. Step 3: Cross multiply
    78,695.88x = 118,025.28 × 22,535.16
  4. Step 4: Simplify right side
    78,695.88x = 2,659,718,568.84
  5. Step 5: Solve for x
    x = 2,659,718,568.84/78,695.88
  6. Step 6: Final answer
    x = 33,797.43

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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.