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Finding the Fourth Proportional to 104,407.70, 156,611.55 and 51,919.70

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Solution

The fourth proportional to 104,407.70, 156,611.55 and 51,919.70 is: 77,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,407.70 : 156,611.55 = 51,919.70 : x
  2. Step 2: Convert to fraction form
    104,407.70/156,611.55 = 51,919.70/x
  3. Step 3: Cross multiply
    104,407.70x = 156,611.55 × 51,919.70
  4. Step 4: Simplify right side
    104,407.70x = 8,131,224,692.54
  5. Step 5: Solve for x
    x = 8,131,224,692.54/104,407.70
  6. Step 6: Final answer
    x = 77,879.55

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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.