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Finding the Fourth Proportional to 75,067, 112,600.50 and 28,308.94

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Solution

The fourth proportional to 75,067, 112,600.50 and 28,308.94 is: 42,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,067 : 112,600.50 = 28,308.94 : x
  2. Step 2: Convert to fraction form
    75,067/112,600.50 = 28,308.94/x
  3. Step 3: Cross multiply
    75,067x = 112,600.50 × 28,308.94
  4. Step 4: Simplify right side
    75,067x = 3,187,600,798.47
  5. Step 5: Solve for x
    x = 3,187,600,798.47/75,067
  6. Step 6: Final answer
    x = 42,463.41

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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.