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Finding the Fourth Proportional to 96,738.60, 145,107.90 and 82,914.60

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Solution

The fourth proportional to 96,738.60, 145,107.90 and 82,914.60 is: 124,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,738.60 : 145,107.90 = 82,914.60 : x
  2. Step 2: Convert to fraction form
    96,738.60/145,107.90 = 82,914.60/x
  3. Step 3: Cross multiply
    96,738.60x = 145,107.90 × 82,914.60
  4. Step 4: Simplify right side
    96,738.60x = 12,031,563,485.34
  5. Step 5: Solve for x
    x = 12,031,563,485.34/96,738.60
  6. Step 6: Final answer
    x = 124,371.90

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1.5x scale

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.