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Finding the Fourth Proportional to 186,799.10, 280,235.10 and 74,460.20

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Solution

The fourth proportional to 186,799.10, 280,235.10 and 74,460.20 is: 111,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,799.10 : 280,235.10 = 74,460.20 : x
  2. Step 2: Convert to fraction form
    186,799.10/280,235.10 = 74,460.20/x
  3. Step 3: Cross multiply
    186,799.10x = 280,235.10 × 74,460.20
  4. Step 4: Simplify right side
    186,799.10x = 20,866,361,593.02
  5. Step 5: Solve for x
    x = 20,866,361,593.02/186,799.10
  6. Step 6: Final answer
    x = 111,704.83

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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.