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Finding the Fourth Proportional to 200,720.97, 301,092.80 and 88,453.89

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Solution

The fourth proportional to 200,720.97, 301,092.80 and 88,453.89 is: 132,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,720.97 : 301,092.80 = 88,453.89 : x
  2. Step 2: Convert to fraction form
    200,720.97/301,092.80 = 88,453.89/x
  3. Step 3: Cross multiply
    200,720.97x = 301,092.80 × 88,453.89
  4. Step 4: Simplify right side
    200,720.97x = 26,632,828,968.72
  5. Step 5: Solve for x
    x = 26,632,828,968.72/200,720.97
  6. Step 6: Final answer
    x = 132,685.83

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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.