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Finding the Third Proportional to 72,592 and 159,440

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Solution

The third proportional to 72,592 and 159,440 is: 350,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592 : 159,440 = 159,440 : x
  2. Step 2: Convert to fraction form
    72,592/159,440 = 159,440/x
  3. Step 3: Cross multiply
    72,592x = 159,440 × 159,440
  4. Step 4: Simplify right side
    72,592x = 25,421,113,600
  5. Step 5: Solve for x
    x = 25,421,113,600/72,592
  6. Step 6: Final answer
    x = 350,191.67

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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.