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Finding the Fourth Proportional to 77,297.60, 106,680.57 and 45,469.46

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Solution

The fourth proportional to 77,297.60, 106,680.57 and 45,469.46 is: 62,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,297.60 : 106,680.57 = 45,469.46 : x
  2. Step 2: Convert to fraction form
    77,297.60/106,680.57 = 45,469.46/x
  3. Step 3: Cross multiply
    77,297.60x = 106,680.57 × 45,469.46
  4. Step 4: Simplify right side
    77,297.60x = 4,850,707,910.39
  5. Step 5: Solve for x
    x = 4,850,707,910.39/77,297.60
  6. Step 6: Final answer
    x = 62,753.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.