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Finding the Fourth Proportional to 74,791.52, 112,022.44 and 61,821.42

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Solution

The fourth proportional to 74,791.52, 112,022.44 and 61,821.42 is: 92,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.52 : 112,022.44 = 61,821.42 : x
  2. Step 2: Convert to fraction form
    74,791.52/112,022.44 = 61,821.42/x
  3. Step 3: Cross multiply
    74,791.52x = 112,022.44 × 61,821.42
  4. Step 4: Simplify right side
    74,791.52x = 6,925,386,312.66
  5. Step 5: Solve for x
    x = 6,925,386,312.66/74,791.52
  6. Step 6: Final answer
    x = 92,595.88

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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.