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Finding the Fourth Proportional to 321,032.20, 481,605.90 and 134,062.60

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Solution

The fourth proportional to 321,032.20, 481,605.90 and 134,062.60 is: 201,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,032.20 : 481,605.90 = 134,062.60 : x
  2. Step 2: Convert to fraction form
    321,032.20/481,605.90 = 134,062.60/x
  3. Step 3: Cross multiply
    321,032.20x = 481,605.90 × 134,062.60
  4. Step 4: Simplify right side
    321,032.20x = 64,565,339,129.34
  5. Step 5: Solve for x
    x = 64,565,339,129.34/321,032.20
  6. Step 6: Final answer
    x = 201,117.95

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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.