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Finding the Fourth Proportional to 81,466.70, 122,163.60 and 37,070.60

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Solution

The fourth proportional to 81,466.70, 122,163.60 and 37,070.60 is: 55,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466.70 : 122,163.60 = 37,070.60 : x
  2. Step 2: Convert to fraction form
    81,466.70/122,163.60 = 37,070.60/x
  3. Step 3: Cross multiply
    81,466.70x = 122,163.60 × 37,070.60
  4. Step 4: Simplify right side
    81,466.70x = 4,528,677,950.16
  5. Step 5: Solve for x
    x = 4,528,677,950.16/81,466.70
  6. Step 6: Final answer
    x = 55,589.31

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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.