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Finding the Fourth Proportional to 73,811.01, 110,702.73 and 19,776.33

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Solution

The fourth proportional to 73,811.01, 110,702.73 and 19,776.33 is: 29,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,811.01 : 110,702.73 = 19,776.33 : x
  2. Step 2: Convert to fraction form
    73,811.01/110,702.73 = 19,776.33/x
  3. Step 3: Cross multiply
    73,811.01x = 110,702.73 × 19,776.33
  4. Step 4: Simplify right side
    73,811.01x = 2,189,293,720.38
  5. Step 5: Solve for x
    x = 2,189,293,720.38/73,811.01
  6. Step 6: Final answer
    x = 29,660.80

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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.