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Finding the Fourth Proportional to 186,965.37, 280,448.52 and 74,654.73

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Solution

The fourth proportional to 186,965.37, 280,448.52 and 74,654.73 is: 111,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,965.37 : 280,448.52 = 74,654.73 : x
  2. Step 2: Convert to fraction form
    186,965.37/280,448.52 = 74,654.73/x
  3. Step 3: Cross multiply
    186,965.37x = 280,448.52 × 74,654.73
  4. Step 4: Simplify right side
    186,965.37x = 20,936,808,539.50
  5. Step 5: Solve for x
    x = 20,936,808,539.50/186,965.37
  6. Step 6: Final answer
    x = 111,982.28

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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.