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Finding the Fourth Proportional to 192,994.16, 266,300.94 and 121,323.44

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Solution

The fourth proportional to 192,994.16, 266,300.94 and 121,323.44 is: 167,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,994.16 : 266,300.94 = 121,323.44 : x
  2. Step 2: Convert to fraction form
    192,994.16/266,300.94 = 121,323.44/x
  3. Step 3: Cross multiply
    192,994.16x = 266,300.94 × 121,323.44
  4. Step 4: Simplify right side
    192,994.16x = 32,308,546,116.03
  5. Step 5: Solve for x
    x = 32,308,546,116.03/192,994.16
  6. Step 6: Final answer
    x = 167,406.86

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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.