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Finding the Fourth Proportional to 221,966.80, 332,993.40 and 64,200.40

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Solution

The fourth proportional to 221,966.80, 332,993.40 and 64,200.40 is: 96,313.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,966.80 : 332,993.40 = 64,200.40 : x
  2. Step 2: Convert to fraction form
    221,966.80/332,993.40 = 64,200.40/x
  3. Step 3: Cross multiply
    221,966.80x = 332,993.40 × 64,200.40
  4. Step 4: Simplify right side
    221,966.80x = 21,378,309,477.36
  5. Step 5: Solve for x
    x = 21,378,309,477.36/221,966.80
  6. Step 6: Final answer
    x = 96,313.09

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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.