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Finding the Fourth Proportional to 200,236,843.60, 300,355,265.40 and 186,206,801.20

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Solution

The fourth proportional to 200,236,843.60, 300,355,265.40 and 186,206,801.20 is: 279,310,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,236,843.60 : 300,355,265.40 = 186,206,801.20 : x
  2. Step 2: Convert to fraction form
    200,236,843.60/300,355,265.40 = 186,206,801.20/x
  3. Step 3: Cross multiply
    200,236,843.60x = 300,355,265.40 × 186,206,801.20
  4. Step 4: Simplify right side
    200,236,843.60x = 55,928,193,193,711,032
  5. Step 5: Solve for x
    x = 55,928,193,193,711,032/200,236,843.60
  6. Step 6: Final answer
    x = 279,310,201.80

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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.