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Finding the Fourth Proportional to 216,976.69, 325,495.85 and 67,228.75

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Solution

The fourth proportional to 216,976.69, 325,495.85 and 67,228.75 is: 100,852.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,976.69 : 325,495.85 = 67,228.75 : x
  2. Step 2: Convert to fraction form
    216,976.69/325,495.85 = 67,228.75/x
  3. Step 3: Cross multiply
    216,976.69x = 325,495.85 × 67,228.75
  4. Step 4: Simplify right side
    216,976.69x = 21,882,679,125.69
  5. Step 5: Solve for x
    x = 21,882,679,125.69/216,976.69
  6. Step 6: Final answer
    x = 100,852.67

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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.