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Finding the Fourth Proportional to 302,958.99, 418,086.33 and 166,998.18

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Solution

The fourth proportional to 302,958.99, 418,086.33 and 166,998.18 is: 230,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,958.99 : 418,086.33 = 166,998.18 : x
  2. Step 2: Convert to fraction form
    302,958.99/418,086.33 = 166,998.18/x
  3. Step 3: Cross multiply
    302,958.99x = 418,086.33 × 166,998.18
  4. Step 4: Simplify right side
    302,958.99x = 69,819,656,192.88
  5. Step 5: Solve for x
    x = 69,819,656,192.88/302,958.99
  6. Step 6: Final answer
    x = 230,459.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.