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Finding the Fourth Proportional to 321,783.24, 482,676.46 and 132,346.92

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Solution

The fourth proportional to 321,783.24, 482,676.46 and 132,346.92 is: 198,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,783.24 : 482,676.46 = 132,346.92 : x
  2. Step 2: Convert to fraction form
    321,783.24/482,676.46 = 132,346.92/x
  3. Step 3: Cross multiply
    321,783.24x = 482,676.46 × 132,346.92
  4. Step 4: Simplify right side
    321,783.24x = 63,880,742,837.50
  5. Step 5: Solve for x
    x = 63,880,742,837.50/321,783.24
  6. Step 6: Final answer
    x = 198,521.04

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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.