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Finding the Fourth Proportional to 104,620.60, 156,758.10 and 89,068.60

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Solution

The fourth proportional to 104,620.60, 156,758.10 and 89,068.60 is: 133,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,620.60 : 156,758.10 = 89,068.60 : x
  2. Step 2: Convert to fraction form
    104,620.60/156,758.10 = 89,068.60/x
  3. Step 3: Cross multiply
    104,620.60x = 156,758.10 × 89,068.60
  4. Step 4: Simplify right side
    104,620.60x = 13,962,224,505.66
  5. Step 5: Solve for x
    x = 13,962,224,505.66/104,620.60
  6. Step 6: Final answer
    x = 133,455.79

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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.