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Finding the Fourth Proportional to 164,586.45, 246,879.68 and 138,014.40

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Solution

The fourth proportional to 164,586.45, 246,879.68 and 138,014.40 is: 207,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,586.45 : 246,879.68 = 138,014.40 : x
  2. Step 2: Convert to fraction form
    164,586.45/246,879.68 = 138,014.40/x
  3. Step 3: Cross multiply
    164,586.45x = 246,879.68 × 138,014.40
  4. Step 4: Simplify right side
    164,586.45x = 34,072,950,217.32
  5. Step 5: Solve for x
    x = 34,072,950,217.32/164,586.45
  6. Step 6: Final answer
    x = 207,021.60

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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.