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Finding the Third Proportional to 72,176 and 157,468

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Solution

The third proportional to 72,176 and 157,468 is: 343,551.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176 : 157,468 = 157,468 : x
  2. Step 2: Convert to fraction form
    72,176/157,468 = 157,468/x
  3. Step 3: Cross multiply
    72,176x = 157,468 × 157,468
  4. Step 4: Simplify right side
    72,176x = 24,796,171,024
  5. Step 5: Solve for x
    x = 24,796,171,024/72,176
  6. Step 6: Final answer
    x = 343,551.47

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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.