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Finding the Third Proportional to 100,401.75 and 155,461.50

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Solution

The third proportional to 100,401.75 and 155,461.50 is: 240,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,401.75 : 155,461.50 = 155,461.50 : x
  2. Step 2: Convert to fraction form
    100,401.75/155,461.50 = 155,461.50/x
  3. Step 3: Cross multiply
    100,401.75x = 155,461.50 × 155,461.50
  4. Step 4: Simplify right side
    100,401.75x = 24,168,277,982.25
  5. Step 5: Solve for x
    x = 24,168,277,982.25/100,401.75
  6. Step 6: Final answer
    x = 240,715.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.