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Finding the Fourth Proportional to 72,692.62, 108,927.66 and 48,912.10

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Solution

The fourth proportional to 72,692.62, 108,927.66 and 48,912.10 is: 73,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692.62 : 108,927.66 = 48,912.10 : x
  2. Step 2: Convert to fraction form
    72,692.62/108,927.66 = 48,912.10/x
  3. Step 3: Cross multiply
    72,692.62x = 108,927.66 × 48,912.10
  4. Step 4: Simplify right side
    72,692.62x = 5,327,880,598.69
  5. Step 5: Solve for x
    x = 5,327,880,598.69/72,692.62
  6. Step 6: Final answer
    x = 73,293.28

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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.