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Finding the Fourth Proportional to 104,323.28, 156,516.11 and 73,986.86

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Solution

The fourth proportional to 104,323.28, 156,516.11 and 73,986.86 is: 111,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,323.28 : 156,516.11 = 73,986.86 : x
  2. Step 2: Convert to fraction form
    104,323.28/156,516.11 = 73,986.86/x
  3. Step 3: Cross multiply
    104,323.28x = 156,516.11 × 73,986.86
  4. Step 4: Simplify right side
    104,323.28x = 11,580,136,094.57
  5. Step 5: Solve for x
    x = 11,580,136,094.57/104,323.28
  6. Step 6: Final answer
    x = 111,002.41

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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.