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Finding the Fourth Proportional to 118,984.79, 164,195.99 and 67,994.27

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Solution

The fourth proportional to 118,984.79, 164,195.99 and 67,994.27 is: 93,830.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,984.79 : 164,195.99 = 67,994.27 : x
  2. Step 2: Convert to fraction form
    118,984.79/164,195.99 = 67,994.27/x
  3. Step 3: Cross multiply
    118,984.79x = 164,195.99 × 67,994.27
  4. Step 4: Simplify right side
    118,984.79x = 11,164,385,316.03
  5. Step 5: Solve for x
    x = 11,164,385,316.03/118,984.79
  6. Step 6: Final answer
    x = 93,830.36

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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.