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Finding the Fourth Proportional to 321,301.60, 481,606.80 and 121,544.80

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Solution

The fourth proportional to 321,301.60, 481,606.80 and 121,544.80 is: 182,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,301.60 : 481,606.80 = 121,544.80 : x
  2. Step 2: Convert to fraction form
    321,301.60/481,606.80 = 121,544.80/x
  3. Step 3: Cross multiply
    321,301.60x = 481,606.80 × 121,544.80
  4. Step 4: Simplify right side
    321,301.60x = 58,536,802,184.64
  5. Step 5: Solve for x
    x = 58,536,802,184.64/321,301.60
  6. Step 6: Final answer
    x = 182,186.46

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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.