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Finding the Fourth Proportional to 192,994.62, 289,574.55 and 80,701.08

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Solution

The fourth proportional to 192,994.62, 289,574.55 and 80,701.08 is: 121,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,994.62 : 289,574.55 = 80,701.08 : x
  2. Step 2: Convert to fraction form
    192,994.62/289,574.55 = 80,701.08/x
  3. Step 3: Cross multiply
    192,994.62x = 289,574.55 × 80,701.08
  4. Step 4: Simplify right side
    192,994.62x = 23,368,978,925.51
  5. Step 5: Solve for x
    x = 23,368,978,925.51/192,994.62
  6. Step 6: Final answer
    x = 121,086.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.