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Finding the Third Proportional to 66,396 and 143,160

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Solution

The third proportional to 66,396 and 143,160 is: 308,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,396 : 143,160 = 143,160 : x
  2. Step 2: Convert to fraction form
    66,396/143,160 = 143,160/x
  3. Step 3: Cross multiply
    66,396x = 143,160 × 143,160
  4. Step 4: Simplify right side
    66,396x = 20,494,785,600
  5. Step 5: Solve for x
    x = 20,494,785,600/66,396
  6. Step 6: Final answer
    x = 308,675.00

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.