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Finding the Fourth Proportional to 162,813.80, 244,293.60 and 74,021.60

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Solution

The fourth proportional to 162,813.80, 244,293.60 and 74,021.60 is: 111,065.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,813.80 : 244,293.60 = 74,021.60 : x
  2. Step 2: Convert to fraction form
    162,813.80/244,293.60 = 74,021.60/x
  3. Step 3: Cross multiply
    162,813.80x = 244,293.60 × 74,021.60
  4. Step 4: Simplify right side
    162,813.80x = 18,083,003,141.76
  5. Step 5: Solve for x
    x = 18,083,003,141.76/162,813.80
  6. Step 6: Final answer
    x = 111,065.54

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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.