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Finding the Fourth Proportional to 118,797.66, 163,943.28 and 65,084.94

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Solution

The fourth proportional to 118,797.66, 163,943.28 and 65,084.94 is: 89,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.66 : 163,943.28 = 65,084.94 : x
  2. Step 2: Convert to fraction form
    118,797.66/163,943.28 = 65,084.94/x
  3. Step 3: Cross multiply
    118,797.66x = 163,943.28 × 65,084.94
  4. Step 4: Simplify right side
    118,797.66x = 10,670,238,542.20
  5. Step 5: Solve for x
    x = 10,670,238,542.20/118,797.66
  6. Step 6: Final answer
    x = 89,818.59

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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.