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Finding the Fourth Proportional to 118,979.48, 164,168.96 and 68,008.37

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Solution

The fourth proportional to 118,979.48, 164,168.96 and 68,008.37 is: 93,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,979.48 : 164,168.96 = 68,008.37 : x
  2. Step 2: Convert to fraction form
    118,979.48/164,168.96 = 68,008.37/x
  3. Step 3: Cross multiply
    118,979.48x = 164,168.96 × 68,008.37
  4. Step 4: Simplify right side
    118,979.48x = 11,164,862,213.31
  5. Step 5: Solve for x
    x = 11,164,862,213.31/118,979.48
  6. Step 6: Final answer
    x = 93,838.55

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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.