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Finding the Third Proportional to 155,988 and 246,787

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Solution

The third proportional to 155,988 and 246,787 is: 390,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,988 : 246,787 = 246,787 : x
  2. Step 2: Convert to fraction form
    155,988/246,787 = 246,787/x
  3. Step 3: Cross multiply
    155,988x = 246,787 × 246,787
  4. Step 4: Simplify right side
    155,988x = 60,903,823,369
  5. Step 5: Solve for x
    x = 60,903,823,369/155,988
  6. Step 6: Final answer
    x = 390,439.16

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.