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Finding the Fourth Proportional to 100,611.38, 150,800.42 and 94,779.38

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Solution

The fourth proportional to 100,611.38, 150,800.42 and 94,779.38 is: 142,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,611.38 : 150,800.42 = 94,779.38 : x
  2. Step 2: Convert to fraction form
    100,611.38/150,800.42 = 94,779.38/x
  3. Step 3: Cross multiply
    100,611.38x = 150,800.42 × 94,779.38
  4. Step 4: Simplify right side
    100,611.38x = 14,292,770,311.34
  5. Step 5: Solve for x
    x = 14,292,770,311.34/100,611.38
  6. Step 6: Final answer
    x = 142,059.18

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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.