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Finding the Fourth Proportional to 353,579.80, 529,908.90 and 164,018.20

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Solution

The fourth proportional to 353,579.80, 529,908.90 and 164,018.20 is: 245,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,579.80 : 529,908.90 = 164,018.20 : x
  2. Step 2: Convert to fraction form
    353,579.80/529,908.90 = 164,018.20/x
  3. Step 3: Cross multiply
    353,579.80x = 529,908.90 × 164,018.20
  4. Step 4: Simplify right side
    353,579.80x = 86,914,703,941.98
  5. Step 5: Solve for x
    x = 86,914,703,941.98/353,579.80
  6. Step 6: Final answer
    x = 245,813.54

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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.