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Finding the Fourth Proportional to 106,515.98, 159,795.83 and 43,335.94

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Solution

The fourth proportional to 106,515.98, 159,795.83 and 43,335.94 is: 65,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,515.98 : 159,795.83 = 43,335.94 : x
  2. Step 2: Convert to fraction form
    106,515.98/159,795.83 = 43,335.94/x
  3. Step 3: Cross multiply
    106,515.98x = 159,795.83 × 43,335.94
  4. Step 4: Simplify right side
    106,515.98x = 6,924,901,485.47
  5. Step 5: Solve for x
    x = 6,924,901,485.47/106,515.98
  6. Step 6: Final answer
    x = 65,012.79

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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.