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Finding the Fourth Proportional to 133,406.99, 200,016.11 and 66,799.34

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Solution

The fourth proportional to 133,406.99, 200,016.11 and 66,799.34 is: 100,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,406.99 : 200,016.11 = 66,799.34 : x
  2. Step 2: Convert to fraction form
    133,406.99/200,016.11 = 66,799.34/x
  3. Step 3: Cross multiply
    133,406.99x = 200,016.11 × 66,799.34
  4. Step 4: Simplify right side
    133,406.99x = 13,360,943,304.29
  5. Step 5: Solve for x
    x = 13,360,943,304.29/133,406.99
  6. Step 6: Final answer
    x = 100,151.75

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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.