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Finding the Third Proportional to 70,005 and 104,980.50

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Solution

The third proportional to 70,005 and 104,980.50 is: 157,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,005 : 104,980.50 = 104,980.50 : x
  2. Step 2: Convert to fraction form
    70,005/104,980.50 = 104,980.50/x
  3. Step 3: Cross multiply
    70,005x = 104,980.50 × 104,980.50
  4. Step 4: Simplify right side
    70,005x = 11,020,905,380.25
  5. Step 5: Solve for x
    x = 11,020,905,380.25/70,005
  6. Step 6: Final answer
    x = 157,430.26

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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.