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Finding the Fourth Proportional to 118,644.24, 163,713.24 and 68,333.52

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Solution

The fourth proportional to 118,644.24, 163,713.24 and 68,333.52 is: 94,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,644.24 : 163,713.24 = 68,333.52 : x
  2. Step 2: Convert to fraction form
    118,644.24/163,713.24 = 68,333.52/x
  3. Step 3: Cross multiply
    118,644.24x = 163,713.24 × 68,333.52
  4. Step 4: Simplify right side
    118,644.24x = 11,187,101,959.80
  5. Step 5: Solve for x
    x = 11,187,101,959.80/118,644.24
  6. Step 6: Final answer
    x = 94,291.15

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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.