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Finding the Fourth Proportional to 73,137.41, 100,929.62 and 39,603.41

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Solution

The fourth proportional to 73,137.41, 100,929.62 and 39,603.41 is: 54,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,137.41 : 100,929.62 = 39,603.41 : x
  2. Step 2: Convert to fraction form
    73,137.41/100,929.62 = 39,603.41/x
  3. Step 3: Cross multiply
    73,137.41x = 100,929.62 × 39,603.41
  4. Step 4: Simplify right side
    73,137.41x = 3,997,157,122.00
  5. Step 5: Solve for x
    x = 3,997,157,122.00/73,137.41
  6. Step 6: Final answer
    x = 54,652.70

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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.