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Finding the Fourth Proportional to 200,880.60, 301,320.90 and 170,813.40

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Solution

The fourth proportional to 200,880.60, 301,320.90 and 170,813.40 is: 256,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,880.60 : 301,320.90 = 170,813.40 : x
  2. Step 2: Convert to fraction form
    200,880.60/301,320.90 = 170,813.40/x
  3. Step 3: Cross multiply
    200,880.60x = 301,320.90 × 170,813.40
  4. Step 4: Simplify right side
    200,880.60x = 51,469,647,420.06
  5. Step 5: Solve for x
    x = 51,469,647,420.06/200,880.60
  6. Step 6: Final answer
    x = 256,220.10

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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.