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Finding the Third Proportional to 100,878.75 and 151,753.50

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Solution

The third proportional to 100,878.75 and 151,753.50 is: 228,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,878.75 : 151,753.50 = 151,753.50 : x
  2. Step 2: Convert to fraction form
    100,878.75/151,753.50 = 151,753.50/x
  3. Step 3: Cross multiply
    100,878.75x = 151,753.50 × 151,753.50
  4. Step 4: Simplify right side
    100,878.75x = 23,029,124,762.25
  5. Step 5: Solve for x
    x = 23,029,124,762.25/100,878.75
  6. Step 6: Final answer
    x = 228,285.19

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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.