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Finding the Fourth Proportional to 127,692.72, 191,626.56 and 44,586.72

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Solution

The fourth proportional to 127,692.72, 191,626.56 and 44,586.72 is: 66,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,692.72 : 191,626.56 = 44,586.72 : x
  2. Step 2: Convert to fraction form
    127,692.72/191,626.56 = 44,586.72/x
  3. Step 3: Cross multiply
    127,692.72x = 191,626.56 × 44,586.72
  4. Step 4: Simplify right side
    127,692.72x = 8,543,999,775.28
  5. Step 5: Solve for x
    x = 8,543,999,775.28/127,692.72
  6. Step 6: Final answer
    x = 66,910.63

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1.5x scale

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.