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Finding the Fourth Proportional to 61,900.47, 92,978.69 and 50,067.45

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Solution

The fourth proportional to 61,900.47, 92,978.69 and 50,067.45 is: 75,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.47 : 92,978.69 = 50,067.45 : x
  2. Step 2: Convert to fraction form
    61,900.47/92,978.69 = 50,067.45/x
  3. Step 3: Cross multiply
    61,900.47x = 92,978.69 × 50,067.45
  4. Step 4: Simplify right side
    61,900.47x = 4,655,205,662.30
  5. Step 5: Solve for x
    x = 4,655,205,662.30/61,900.47
  6. Step 6: Final answer
    x = 75,204.69

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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.