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Finding the Fourth Proportional to 192,008.40, 288,358.20 and 185,787.60

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Solution

The fourth proportional to 192,008.40, 288,358.20 and 185,787.60 is: 279,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,008.40 : 288,358.20 = 185,787.60 : x
  2. Step 2: Convert to fraction form
    192,008.40/288,358.20 = 185,787.60/x
  3. Step 3: Cross multiply
    192,008.40x = 288,358.20 × 185,787.60
  4. Step 4: Simplify right side
    192,008.40x = 53,573,377,918.32
  5. Step 5: Solve for x
    x = 53,573,377,918.32/192,008.40
  6. Step 6: Final answer
    x = 279,015.80

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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.