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Finding the Third Proportional to 74,036.25 and 162,128.25

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Solution

The third proportional to 74,036.25 and 162,128.25 is: 355,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,036.25 : 162,128.25 = 162,128.25 : x
  2. Step 2: Convert to fraction form
    74,036.25/162,128.25 = 162,128.25/x
  3. Step 3: Cross multiply
    74,036.25x = 162,128.25 × 162,128.25
  4. Step 4: Simplify right side
    74,036.25x = 26,285,569,448.06
  5. Step 5: Solve for x
    x = 26,285,569,448.06/74,036.25
  6. Step 6: Final answer
    x = 355,036.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.