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Finding the Fourth Proportional to 207,349.80, 311,024.70 and 140,994.60

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Solution

The fourth proportional to 207,349.80, 311,024.70 and 140,994.60 is: 211,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,349.80 : 311,024.70 = 140,994.60 : x
  2. Step 2: Convert to fraction form
    207,349.80/311,024.70 = 140,994.60/x
  3. Step 3: Cross multiply
    207,349.80x = 311,024.70 × 140,994.60
  4. Step 4: Simplify right side
    207,349.80x = 43,852,803,166.62
  5. Step 5: Solve for x
    x = 43,852,803,166.62/207,349.80
  6. Step 6: Final answer
    x = 211,491.90

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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.