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Finding the Third Proportional to 64,548 and 156,988

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Solution

The third proportional to 64,548 and 156,988 is: 381,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,548 : 156,988 = 156,988 : x
  2. Step 2: Convert to fraction form
    64,548/156,988 = 156,988/x
  3. Step 3: Cross multiply
    64,548x = 156,988 × 156,988
  4. Step 4: Simplify right side
    64,548x = 24,645,232,144
  5. Step 5: Solve for x
    x = 24,645,232,144/64,548
  6. Step 6: Final answer
    x = 381,812.48

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.