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Finding the Third Proportional to 74,878.88 and 162,879.75

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Solution

The third proportional to 74,878.88 and 162,879.75 is: 354,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,878.88 : 162,879.75 = 162,879.75 : x
  2. Step 2: Convert to fraction form
    74,878.88/162,879.75 = 162,879.75/x
  3. Step 3: Cross multiply
    74,878.88x = 162,879.75 × 162,879.75
  4. Step 4: Simplify right side
    74,878.88x = 26,529,812,960.06
  5. Step 5: Solve for x
    x = 26,529,812,960.06/74,878.88
  6. Step 6: Final answer
    x = 354,303.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.