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Finding the Fourth Proportional to 164,711.70, 247,067.55 and 111,567.60

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Solution

The fourth proportional to 164,711.70, 247,067.55 and 111,567.60 is: 167,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,711.70 : 247,067.55 = 111,567.60 : x
  2. Step 2: Convert to fraction form
    164,711.70/247,067.55 = 111,567.60/x
  3. Step 3: Cross multiply
    164,711.70x = 247,067.55 × 111,567.60
  4. Step 4: Simplify right side
    164,711.70x = 27,564,733,591.38
  5. Step 5: Solve for x
    x = 27,564,733,591.38/164,711.70
  6. Step 6: Final answer
    x = 167,351.40

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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.