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Finding the Third Proportional to 72,888 and 157,260

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Solution

The third proportional to 72,888 and 157,260 is: 339,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,888 : 157,260 = 157,260 : x
  2. Step 2: Convert to fraction form
    72,888/157,260 = 157,260/x
  3. Step 3: Cross multiply
    72,888x = 157,260 × 157,260
  4. Step 4: Simplify right side
    72,888x = 24,730,707,600
  5. Step 5: Solve for x
    x = 24,730,707,600/72,888
  6. Step 6: Final answer
    x = 339,297.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.