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Finding the Third Proportional to 118,440 and 156,492

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Solution

The third proportional to 118,440 and 156,492 is: 206,769.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,440 : 156,492 = 156,492 : x
  2. Step 2: Convert to fraction form
    118,440/156,492 = 156,492/x
  3. Step 3: Cross multiply
    118,440x = 156,492 × 156,492
  4. Step 4: Simplify right side
    118,440x = 24,489,746,064
  5. Step 5: Solve for x
    x = 24,489,746,064/118,440
  6. Step 6: Final answer
    x = 206,769.22

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.