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Finding the Fourth Proportional to 73,322.61, 101,185.21 and 39,788.61

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Solution

The fourth proportional to 73,322.61, 101,185.21 and 39,788.61 is: 54,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,322.61 : 101,185.21 = 39,788.61 : x
  2. Step 2: Convert to fraction form
    73,322.61/101,185.21 = 39,788.61/x
  3. Step 3: Cross multiply
    73,322.61x = 101,185.21 × 39,788.61
  4. Step 4: Simplify right side
    73,322.61x = 4,026,019,270.59
  5. Step 5: Solve for x
    x = 4,026,019,270.59/73,322.61
  6. Step 6: Final answer
    x = 54,908.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.