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Finding the Fourth Proportional to 164,791.95, 247,187.93 and 76,019.19

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Solution

The fourth proportional to 164,791.95, 247,187.93 and 76,019.19 is: 114,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,791.95 : 247,187.93 = 76,019.19 : x
  2. Step 2: Convert to fraction form
    164,791.95/247,187.93 = 76,019.19/x
  3. Step 3: Cross multiply
    164,791.95x = 247,187.93 × 76,019.19
  4. Step 4: Simplify right side
    164,791.95x = 18,791,025,836.28
  5. Step 5: Solve for x
    x = 18,791,025,836.28/164,791.95
  6. Step 6: Final answer
    x = 114,028.79

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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.