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Finding the Fourth Proportional to 207,922.80, 311,365.80 and 166,450.80

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Solution

The fourth proportional to 207,922.80, 311,365.80 and 166,450.80 is: 249,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,922.80 : 311,365.80 = 166,450.80 : x
  2. Step 2: Convert to fraction form
    207,922.80/311,365.80 = 166,450.80/x
  3. Step 3: Cross multiply
    207,922.80x = 311,365.80 × 166,450.80
  4. Step 4: Simplify right side
    207,922.80x = 51,827,086,502.64
  5. Step 5: Solve for x
    x = 51,827,086,502.64/207,922.80
  6. Step 6: Final answer
    x = 249,261.20

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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.