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Finding the Fourth Proportional to 221,688.80, 332,226.72 and 192,033.12

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Solution

The fourth proportional to 221,688.80, 332,226.72 and 192,033.12 is: 287,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,688.80 : 332,226.72 = 192,033.12 : x
  2. Step 2: Convert to fraction form
    221,688.80/332,226.72 = 192,033.12/x
  3. Step 3: Cross multiply
    221,688.80x = 332,226.72 × 192,033.12
  4. Step 4: Simplify right side
    221,688.80x = 63,798,533,588.97
  5. Step 5: Solve for x
    x = 63,798,533,588.97/221,688.80
  6. Step 6: Final answer
    x = 287,784.20

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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.