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Finding the Fourth Proportional to 164,791.79, 247,187.69 and 76,019.03

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Solution

The fourth proportional to 164,791.79, 247,187.69 and 76,019.03 is: 114,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,791.79 : 247,187.69 = 76,019.03 : x
  2. Step 2: Convert to fraction form
    164,791.79/247,187.69 = 76,019.03/x
  3. Step 3: Cross multiply
    164,791.79x = 247,187.69 × 76,019.03
  4. Step 4: Simplify right side
    164,791.79x = 18,790,968,421.74
  5. Step 5: Solve for x
    x = 18,790,968,421.74/164,791.79
  6. Step 6: Final answer
    x = 114,028.55

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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.