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Finding the Fourth Proportional to 69,466.76, 103,728.57 and 55,267.96

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Solution

The fourth proportional to 69,466.76, 103,728.57 and 55,267.96 is: 82,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,466.76 : 103,728.57 = 55,267.96 : x
  2. Step 2: Convert to fraction form
    69,466.76/103,728.57 = 55,267.96/x
  3. Step 3: Cross multiply
    69,466.76x = 103,728.57 × 55,267.96
  4. Step 4: Simplify right side
    69,466.76x = 5,732,866,457.62
  5. Step 5: Solve for x
    x = 5,732,866,457.62/69,466.76
  6. Step 6: Final answer
    x = 82,526.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.