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Finding the Fourth Proportional to 71,573.86, 98,772.51 and 39,743.29

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Solution

The fourth proportional to 71,573.86, 98,772.51 and 39,743.29 is: 54,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,573.86 : 98,772.51 = 39,743.29 : x
  2. Step 2: Convert to fraction form
    71,573.86/98,772.51 = 39,743.29/x
  3. Step 3: Cross multiply
    71,573.86x = 98,772.51 × 39,743.29
  4. Step 4: Simplify right side
    71,573.86x = 3,925,544,508.96
  5. Step 5: Solve for x
    x = 3,925,544,508.96/71,573.86
  6. Step 6: Final answer
    x = 54,846.06

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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.