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Finding the Third Proportional to 58,420.50 and 127,090.50

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Solution

The third proportional to 58,420.50 and 127,090.50 is: 276,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,420.50 : 127,090.50 = 127,090.50 : x
  2. Step 2: Convert to fraction form
    58,420.50/127,090.50 = 127,090.50/x
  3. Step 3: Cross multiply
    58,420.50x = 127,090.50 × 127,090.50
  4. Step 4: Simplify right side
    58,420.50x = 16,151,995,190.25
  5. Step 5: Solve for x
    x = 16,151,995,190.25/58,420.50
  6. Step 6: Final answer
    x = 276,478.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.