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Finding the Fourth Proportional to 106,600.37, 159,866.53 and 43,420.37

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Solution

The fourth proportional to 106,600.37, 159,866.53 and 43,420.37 is: 65,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,600.37 : 159,866.53 = 43,420.37 : x
  2. Step 2: Convert to fraction form
    106,600.37/159,866.53 = 43,420.37/x
  3. Step 3: Cross multiply
    106,600.37x = 159,866.53 × 43,420.37
  4. Step 4: Simplify right side
    106,600.37x = 6,941,462,975.33
  5. Step 5: Solve for x
    x = 6,941,462,975.33/106,600.37
  6. Step 6: Final answer
    x = 65,116.69

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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.