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Finding the Third Proportional to 74,724 and 112,176

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Solution

The third proportional to 74,724 and 112,176 is: 168,399.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,724 : 112,176 = 112,176 : x
  2. Step 2: Convert to fraction form
    74,724/112,176 = 112,176/x
  3. Step 3: Cross multiply
    74,724x = 112,176 × 112,176
  4. Step 4: Simplify right side
    74,724x = 12,583,454,976
  5. Step 5: Solve for x
    x = 12,583,454,976/74,724
  6. Step 6: Final answer
    x = 168,399.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.