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Finding the Fourth Proportional to 104,051.80, 156,048.90 and 41,728.60

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Solution

The fourth proportional to 104,051.80, 156,048.90 and 41,728.60 is: 62,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,051.80 : 156,048.90 = 41,728.60 : x
  2. Step 2: Convert to fraction form
    104,051.80/156,048.90 = 41,728.60/x
  3. Step 3: Cross multiply
    104,051.80x = 156,048.90 × 41,728.60
  4. Step 4: Simplify right side
    104,051.80x = 6,511,702,128.54
  5. Step 5: Solve for x
    x = 6,511,702,128.54/104,051.80
  6. Step 6: Final answer
    x = 62,581.35

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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.