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Finding the Fourth Proportional to 331,804.40, 497,771.40 and 132,090.80

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Solution

The fourth proportional to 331,804.40, 497,771.40 and 132,090.80 is: 198,162.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,804.40 : 497,771.40 = 132,090.80 : x
  2. Step 2: Convert to fraction form
    331,804.40/497,771.40 = 132,090.80/x
  3. Step 3: Cross multiply
    331,804.40x = 497,771.40 × 132,090.80
  4. Step 4: Simplify right side
    331,804.40x = 65,751,022,443.12
  5. Step 5: Solve for x
    x = 65,751,022,443.12/331,804.40
  6. Step 6: Final answer
    x = 198,162.00

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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.