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Finding the Third Proportional to 147.56 and 325.13

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Solution

The third proportional to 147.56 and 325.13 is: 716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.56 : 325.13 = 325.13 : x
  2. Step 2: Convert to fraction form
    147.56/325.13 = 325.13/x
  3. Step 3: Cross multiply
    147.56x = 325.13 × 325.13
  4. Step 4: Simplify right side
    147.56x = 105,706.27
  5. Step 5: Solve for x
    x = 105,706.27/147.56
  6. Step 6: Final answer
    x = 716.35

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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.