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Finding the Third Proportional to 155,372 and 235,158

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Solution

The third proportional to 155,372 and 235,158 is: 355,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,372 : 235,158 = 235,158 : x
  2. Step 2: Convert to fraction form
    155,372/235,158 = 235,158/x
  3. Step 3: Cross multiply
    155,372x = 235,158 × 235,158
  4. Step 4: Simplify right side
    155,372x = 55,299,284,964
  5. Step 5: Solve for x
    x = 55,299,284,964/155,372
  6. Step 6: Final answer
    x = 355,915.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.