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Finding the Fourth Proportional to 104,582.63, 144,704.03 and 91,181.79

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Solution

The fourth proportional to 104,582.63, 144,704.03 and 91,181.79 is: 126,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,582.63 : 144,704.03 = 91,181.79 : x
  2. Step 2: Convert to fraction form
    104,582.63/144,704.03 = 91,181.79/x
  3. Step 3: Cross multiply
    104,582.63x = 144,704.03 × 91,181.79
  4. Step 4: Simplify right side
    104,582.63x = 13,194,372,019.70
  5. Step 5: Solve for x
    x = 13,194,372,019.70/104,582.63
  6. Step 6: Final answer
    x = 126,162.18

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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.