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Finding the Fourth Proportional to 71,297.59, 107,051.52 and 39,769.25

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Solution

The fourth proportional to 71,297.59, 107,051.52 and 39,769.25 is: 59,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,297.59 : 107,051.52 = 39,769.25 : x
  2. Step 2: Convert to fraction form
    71,297.59/107,051.52 = 39,769.25/x
  3. Step 3: Cross multiply
    71,297.59x = 107,051.52 × 39,769.25
  4. Step 4: Simplify right side
    71,297.59x = 4,257,357,927.66
  5. Step 5: Solve for x
    x = 4,257,357,927.66/71,297.59
  6. Step 6: Final answer
    x = 59,712.51

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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.