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Finding the Third Proportional to 157,984 and 348,000

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Solution

The third proportional to 157,984 and 348,000 is: 766,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,984 : 348,000 = 348,000 : x
  2. Step 2: Convert to fraction form
    157,984/348,000 = 348,000/x
  3. Step 3: Cross multiply
    157,984x = 348,000 × 348,000
  4. Step 4: Simplify right side
    157,984x = 121,104,000,000
  5. Step 5: Solve for x
    x = 121,104,000,000/157,984
  6. Step 6: Final answer
    x = 766,558.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.