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Finding the Third Proportional to 72,176 and 98,328

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Solution

The third proportional to 72,176 and 98,328 is: 133,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176 : 98,328 = 98,328 : x
  2. Step 2: Convert to fraction form
    72,176/98,328 = 98,328/x
  3. Step 3: Cross multiply
    72,176x = 98,328 × 98,328
  4. Step 4: Simplify right side
    72,176x = 9,668,395,584
  5. Step 5: Solve for x
    x = 9,668,395,584/72,176
  6. Step 6: Final answer
    x = 133,955.82

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.