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Finding the Fourth Proportional to 209,670.40, 313,891.20 and 185,094.40

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Solution

The fourth proportional to 209,670.40, 313,891.20 and 185,094.40 is: 277,099.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,670.40 : 313,891.20 = 185,094.40 : x
  2. Step 2: Convert to fraction form
    209,670.40/313,891.20 = 185,094.40/x
  3. Step 3: Cross multiply
    209,670.40x = 313,891.20 × 185,094.40
  4. Step 4: Simplify right side
    209,670.40x = 58,099,503,329.28
  5. Step 5: Solve for x
    x = 58,099,503,329.28/209,670.40
  6. Step 6: Final answer
    x = 277,099.22

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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.