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Finding the Fourth Proportional to 70,796.20, 97,664.62 and 43,969.90

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Solution

The fourth proportional to 70,796.20, 97,664.62 and 43,969.90 is: 60,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,796.20 : 97,664.62 = 43,969.90 : x
  2. Step 2: Convert to fraction form
    70,796.20/97,664.62 = 43,969.90/x
  3. Step 3: Cross multiply
    70,796.20x = 97,664.62 × 43,969.90
  4. Step 4: Simplify right side
    70,796.20x = 4,294,303,574.94
  5. Step 5: Solve for x
    x = 4,294,303,574.94/70,796.20
  6. Step 6: Final answer
    x = 60,657.26

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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.