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Finding the Third Proportional to 104,490 and 156,971.25

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Solution

The third proportional to 104,490 and 156,971.25 is: 235,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490 : 156,971.25 = 156,971.25 : x
  2. Step 2: Convert to fraction form
    104,490/156,971.25 = 156,971.25/x
  3. Step 3: Cross multiply
    104,490x = 156,971.25 × 156,971.25
  4. Step 4: Simplify right side
    104,490x = 24,639,973,326.56
  5. Step 5: Solve for x
    x = 24,639,973,326.56/104,490
  6. Step 6: Final answer
    x = 235,811.78

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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.