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Finding the Fourth Proportional to 448,682.68, 672,878.40 and 149,082.81

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Solution

The fourth proportional to 448,682.68, 672,878.40 and 149,082.81 is: 223,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,682.68 : 672,878.40 = 149,082.81 : x
  2. Step 2: Convert to fraction form
    448,682.68/672,878.40 = 149,082.81/x
  3. Step 3: Cross multiply
    448,682.68x = 672,878.40 × 149,082.81
  4. Step 4: Simplify right side
    448,682.68x = 100,314,602,660.30
  5. Step 5: Solve for x
    x = 100,314,602,660.30/448,682.68
  6. Step 6: Final answer
    x = 223,575.83

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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.