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Finding the Fourth Proportional to 353,586.80, 529,919.40 and 164,025.20

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Solution

The fourth proportional to 353,586.80, 529,919.40 and 164,025.20 is: 245,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,586.80 : 529,919.40 = 164,025.20 : x
  2. Step 2: Convert to fraction form
    353,586.80/529,919.40 = 164,025.20/x
  3. Step 3: Cross multiply
    353,586.80x = 529,919.40 × 164,025.20
  4. Step 4: Simplify right side
    353,586.80x = 86,920,135,568.88
  5. Step 5: Solve for x
    x = 86,920,135,568.88/353,586.80
  6. Step 6: Final answer
    x = 245,824.04

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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.