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Finding the Fourth Proportional to 324,034.60, 485,906.10 and 124,288.60

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Solution

The fourth proportional to 324,034.60, 485,906.10 and 124,288.60 is: 186,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,034.60 : 485,906.10 = 124,288.60 : x
  2. Step 2: Convert to fraction form
    324,034.60/485,906.10 = 124,288.60/x
  3. Step 3: Cross multiply
    324,034.60x = 485,906.10 × 124,288.60
  4. Step 4: Simplify right side
    324,034.60x = 60,392,588,900.46
  5. Step 5: Solve for x
    x = 60,392,588,900.46/324,034.60
  6. Step 6: Final answer
    x = 186,376.98

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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.