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Finding the Fourth Proportional to 113,763.56, 156,962.22 and 73,479.02

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Solution

The fourth proportional to 113,763.56, 156,962.22 and 73,479.02 is: 101,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,763.56 : 156,962.22 = 73,479.02 : x
  2. Step 2: Convert to fraction form
    113,763.56/156,962.22 = 73,479.02/x
  3. Step 3: Cross multiply
    113,763.56x = 156,962.22 × 73,479.02
  4. Step 4: Simplify right side
    113,763.56x = 11,533,430,102.62
  5. Step 5: Solve for x
    x = 11,533,430,102.62/113,763.56
  6. Step 6: Final answer
    x = 101,380.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.