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Finding the Third Proportional to 200,349.50 and 423,055

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Solution

The third proportional to 200,349.50 and 423,055 is: 893,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,349.50 : 423,055 = 423,055 : x
  2. Step 2: Convert to fraction form
    200,349.50/423,055 = 423,055/x
  3. Step 3: Cross multiply
    200,349.50x = 423,055 × 423,055
  4. Step 4: Simplify right side
    200,349.50x = 178,975,533,025
  5. Step 5: Solve for x
    x = 178,975,533,025/200,349.50
  6. Step 6: Final answer
    x = 893,316.59

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.