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Finding the Fourth Proportional to 167,994.90, 231,783.39 and 99,957.33

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Solution

The fourth proportional to 167,994.90, 231,783.39 and 99,957.33 is: 137,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,994.90 : 231,783.39 = 99,957.33 : x
  2. Step 2: Convert to fraction form
    167,994.90/231,783.39 = 99,957.33/x
  3. Step 3: Cross multiply
    167,994.90x = 231,783.39 × 99,957.33
  4. Step 4: Simplify right side
    167,994.90x = 23,168,448,802.75
  5. Step 5: Solve for x
    x = 23,168,448,802.75/167,994.90
  6. Step 6: Final answer
    x = 137,911.62

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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.