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Finding the Third Proportional to 158,458.50 and 348,021

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Solution

The third proportional to 158,458.50 and 348,021 is: 764,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,458.50 : 348,021 = 348,021 : x
  2. Step 2: Convert to fraction form
    158,458.50/348,021 = 348,021/x
  3. Step 3: Cross multiply
    158,458.50x = 348,021 × 348,021
  4. Step 4: Simplify right side
    158,458.50x = 121,118,616,441
  5. Step 5: Solve for x
    x = 121,118,616,441/158,458.50
  6. Step 6: Final answer
    x = 764,355.44

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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.