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Finding the Fourth Proportional to 118,797.88, 163,935.22 and 65,083.16

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Solution

The fourth proportional to 118,797.88, 163,935.22 and 65,083.16 is: 89,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.88 : 163,935.22 = 65,083.16 : x
  2. Step 2: Convert to fraction form
    118,797.88/163,935.22 = 65,083.16/x
  3. Step 3: Cross multiply
    118,797.88x = 163,935.22 × 65,083.16
  4. Step 4: Simplify right side
    118,797.88x = 10,669,422,152.90
  5. Step 5: Solve for x
    x = 10,669,422,152.90/118,797.88
  6. Step 6: Final answer
    x = 89,811.55

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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.