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Finding the Fourth Proportional to 192,685.40, 289,028.10 and 184,812.20

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Solution

The fourth proportional to 192,685.40, 289,028.10 and 184,812.20 is: 277,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,685.40 : 289,028.10 = 184,812.20 : x
  2. Step 2: Convert to fraction form
    192,685.40/289,028.10 = 184,812.20/x
  3. Step 3: Cross multiply
    192,685.40x = 289,028.10 × 184,812.20
  4. Step 4: Simplify right side
    192,685.40x = 53,415,919,022.82
  5. Step 5: Solve for x
    x = 53,415,919,022.82/192,685.40
  6. Step 6: Final answer
    x = 277,218.30

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1.5x scale

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.