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Finding the Fourth Proportional to 70,809.69, 97,683.21 and 43,983.39

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Solution

The fourth proportional to 70,809.69, 97,683.21 and 43,983.39 is: 60,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.69 : 97,683.21 = 43,983.39 : x
  2. Step 2: Convert to fraction form
    70,809.69/97,683.21 = 43,983.39/x
  3. Step 3: Cross multiply
    70,809.69x = 97,683.21 × 43,983.39
  4. Step 4: Simplify right side
    70,809.69x = 4,296,438,721.88
  5. Step 5: Solve for x
    x = 4,296,438,721.88/70,809.69
  6. Step 6: Final answer
    x = 60,675.86

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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.