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Finding the Fourth Proportional to 61,124.70, 84,359.43 and 58,467.36

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Solution

The fourth proportional to 61,124.70, 84,359.43 and 58,467.36 is: 80,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,124.70 : 84,359.43 = 58,467.36 : x
  2. Step 2: Convert to fraction form
    61,124.70/84,359.43 = 58,467.36/x
  3. Step 3: Cross multiply
    61,124.70x = 84,359.43 × 58,467.36
  4. Step 4: Simplify right side
    61,124.70x = 4,932,273,163.20
  5. Step 5: Solve for x
    x = 4,932,273,163.20/61,124.70
  6. Step 6: Final answer
    x = 80,691.98

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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.