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Finding the Fourth Proportional to 197,164.65, 295,628.51 and 77,078.57

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Solution

The fourth proportional to 197,164.65, 295,628.51 and 77,078.57 is: 115,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,164.65 : 295,628.51 = 77,078.57 : x
  2. Step 2: Convert to fraction form
    197,164.65/295,628.51 = 77,078.57/x
  3. Step 3: Cross multiply
    197,164.65x = 295,628.51 × 77,078.57
  4. Step 4: Simplify right side
    197,164.65x = 22,786,623,179.49
  5. Step 5: Solve for x
    x = 22,786,623,179.49/197,164.65
  6. Step 6: Final answer
    x = 115,571.55

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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.