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Finding the Fourth Proportional to 71,637.09, 107,307.96 and 41,964.96

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Solution

The fourth proportional to 71,637.09, 107,307.96 and 41,964.96 is: 62,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,637.09 : 107,307.96 = 41,964.96 : x
  2. Step 2: Convert to fraction form
    71,637.09/107,307.96 = 41,964.96/x
  3. Step 3: Cross multiply
    71,637.09x = 107,307.96 × 41,964.96
  4. Step 4: Simplify right side
    71,637.09x = 4,503,174,249.08
  5. Step 5: Solve for x
    x = 4,503,174,249.08/71,637.09
  6. Step 6: Final answer
    x = 62,860.93

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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.