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Finding the Fourth Proportional to 69,202.92, 103,800.33 and 19,285.86

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Solution

The fourth proportional to 69,202.92, 103,800.33 and 19,285.86 is: 28,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,202.92 : 103,800.33 = 19,285.86 : x
  2. Step 2: Convert to fraction form
    69,202.92/103,800.33 = 19,285.86/x
  3. Step 3: Cross multiply
    69,202.92x = 103,800.33 × 19,285.86
  4. Step 4: Simplify right side
    69,202.92x = 2,001,878,632.33
  5. Step 5: Solve for x
    x = 2,001,878,632.33/69,202.92
  6. Step 6: Final answer
    x = 28,927.66

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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.