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Finding the Fourth Proportional to 104,731.60, 156,924.60 and 89,179.60

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Solution

The fourth proportional to 104,731.60, 156,924.60 and 89,179.60 is: 133,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,731.60 : 156,924.60 = 89,179.60 : x
  2. Step 2: Convert to fraction form
    104,731.60/156,924.60 = 89,179.60/x
  3. Step 3: Cross multiply
    104,731.60x = 156,924.60 × 89,179.60
  4. Step 4: Simplify right side
    104,731.60x = 13,994,473,058.16
  5. Step 5: Solve for x
    x = 13,994,473,058.16/104,731.60
  6. Step 6: Final answer
    x = 133,622.26

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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.