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Finding the Third Proportional to 72,208 and 158,365

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Solution

The third proportional to 72,208 and 158,365 is: 347,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,208 : 158,365 = 158,365 : x
  2. Step 2: Convert to fraction form
    72,208/158,365 = 158,365/x
  3. Step 3: Cross multiply
    72,208x = 158,365 × 158,365
  4. Step 4: Simplify right side
    72,208x = 25,079,473,225
  5. Step 5: Solve for x
    x = 25,079,473,225/72,208
  6. Step 6: Final answer
    x = 347,322.64

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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.