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Finding the Fourth Proportional to 448,394.99, 672,446.21 and 148,795.11

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Solution

The fourth proportional to 448,394.99, 672,446.21 and 148,795.11 is: 223,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,394.99 : 672,446.21 = 148,795.11 : x
  2. Step 2: Convert to fraction form
    448,394.99/672,446.21 = 148,795.11/x
  3. Step 3: Cross multiply
    448,394.99x = 672,446.21 × 148,795.11
  4. Step 4: Simplify right side
    448,394.99x = 100,056,707,042.06
  5. Step 5: Solve for x
    x = 100,056,707,042.06/448,394.99
  6. Step 6: Final answer
    x = 223,144.13

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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.