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Finding the Fourth Proportional to 69,219.84, 103,912.02 and 58,262.88

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Solution

The fourth proportional to 69,219.84, 103,912.02 and 58,262.88 is: 87,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,219.84 : 103,912.02 = 58,262.88 : x
  2. Step 2: Convert to fraction form
    69,219.84/103,912.02 = 58,262.88/x
  3. Step 3: Cross multiply
    69,219.84x = 103,912.02 × 58,262.88
  4. Step 4: Simplify right side
    69,219.84x = 6,054,213,551.82
  5. Step 5: Solve for x
    x = 6,054,213,551.82/69,219.84
  6. Step 6: Final answer
    x = 87,463.56

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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.