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Finding the Fourth Proportional to 104,466.60, 156,699.90 and 88,720.20

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Solution

The fourth proportional to 104,466.60, 156,699.90 and 88,720.20 is: 133,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,466.60 : 156,699.90 = 88,720.20 : x
  2. Step 2: Convert to fraction form
    104,466.60/156,699.90 = 88,720.20/x
  3. Step 3: Cross multiply
    104,466.60x = 156,699.90 × 88,720.20
  4. Step 4: Simplify right side
    104,466.60x = 13,902,446,467.98
  5. Step 5: Solve for x
    x = 13,902,446,467.98/104,466.60
  6. Step 6: Final answer
    x = 133,080.30

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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.