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Finding the Fourth Proportional to 321,495.20, 482,240.24 and 96,854.88

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Solution

The fourth proportional to 321,495.20, 482,240.24 and 96,854.88 is: 145,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,495.20 : 482,240.24 = 96,854.88 : x
  2. Step 2: Convert to fraction form
    321,495.20/482,240.24 = 96,854.88/x
  3. Step 3: Cross multiply
    321,495.20x = 482,240.24 × 96,854.88
  4. Step 4: Simplify right side
    321,495.20x = 46,707,320,576.37
  5. Step 5: Solve for x
    x = 46,707,320,576.37/321,495.20
  6. Step 6: Final answer
    x = 145,281.55

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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.