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Finding the Fourth Proportional to 70,847.06, 106,294.28 and 28,736.37

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Solution

The fourth proportional to 70,847.06, 106,294.28 and 28,736.37 is: 43,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,847.06 : 106,294.28 = 28,736.37 : x
  2. Step 2: Convert to fraction form
    70,847.06/106,294.28 = 28,736.37/x
  3. Step 3: Cross multiply
    70,847.06x = 106,294.28 × 28,736.37
  4. Step 4: Simplify right side
    70,847.06x = 3,054,511,615.28
  5. Step 5: Solve for x
    x = 3,054,511,615.28/70,847.06
  6. Step 6: Final answer
    x = 43,114.16

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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.