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Finding the Fourth Proportional to 197,323.78, 295,936.42 and 77,405.11

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Solution

The fourth proportional to 197,323.78, 295,936.42 and 77,405.11 is: 116,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,323.78 : 295,936.42 = 77,405.11 : x
  2. Step 2: Convert to fraction form
    197,323.78/295,936.42 = 77,405.11/x
  3. Step 3: Cross multiply
    197,323.78x = 295,936.42 × 77,405.11
  4. Step 4: Simplify right side
    197,323.78x = 22,906,991,143.11
  5. Step 5: Solve for x
    x = 22,906,991,143.11/197,323.78
  6. Step 6: Final answer
    x = 116,088.35

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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.