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Finding the Third Proportional to 156,636 and 235,688

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Solution

The third proportional to 156,636 and 235,688 is: 354,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636 : 235,688 = 235,688 : x
  2. Step 2: Convert to fraction form
    156,636/235,688 = 235,688/x
  3. Step 3: Cross multiply
    156,636x = 235,688 × 235,688
  4. Step 4: Simplify right side
    156,636x = 55,548,833,344
  5. Step 5: Solve for x
    x = 55,548,833,344/156,636
  6. Step 6: Final answer
    x = 354,636.44

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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.