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Finding the Third Proportional to 70,551 and 105,817.50

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Solution

The third proportional to 70,551 and 105,817.50 is: 158,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,551 : 105,817.50 = 105,817.50 : x
  2. Step 2: Convert to fraction form
    70,551/105,817.50 = 105,817.50/x
  3. Step 3: Cross multiply
    70,551x = 105,817.50 × 105,817.50
  4. Step 4: Simplify right side
    70,551x = 11,197,343,306.25
  5. Step 5: Solve for x
    x = 11,197,343,306.25/70,551
  6. Step 6: Final answer
    x = 158,712.75

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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.