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Finding the Fourth Proportional to 70,855.14, 106,245.80 and 26,445.37

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Solution

The fourth proportional to 70,855.14, 106,245.80 and 26,445.37 is: 39,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,855.14 : 106,245.80 = 26,445.37 : x
  2. Step 2: Convert to fraction form
    70,855.14/106,245.80 = 26,445.37/x
  3. Step 3: Cross multiply
    70,855.14x = 106,245.80 × 26,445.37
  4. Step 4: Simplify right side
    70,855.14x = 2,809,709,740.45
  5. Step 5: Solve for x
    x = 2,809,709,740.45/70,855.14
  6. Step 6: Final answer
    x = 39,654.28

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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.