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Finding the Third Proportional to 73,688 and 117,220

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Solution

The third proportional to 73,688 and 117,220 is: 186,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,688 : 117,220 = 117,220 : x
  2. Step 2: Convert to fraction form
    73,688/117,220 = 117,220/x
  3. Step 3: Cross multiply
    73,688x = 117,220 × 117,220
  4. Step 4: Simplify right side
    73,688x = 13,740,528,400
  5. Step 5: Solve for x
    x = 13,740,528,400/73,688
  6. Step 6: Final answer
    x = 186,469.01

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.