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Finding the Fourth Proportional to 448,626.51, 672,668.58 and 178,796.19

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Solution

The fourth proportional to 448,626.51, 672,668.58 and 178,796.19 is: 268,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,626.51 : 672,668.58 = 178,796.19 : x
  2. Step 2: Convert to fraction form
    448,626.51/672,668.58 = 178,796.19/x
  3. Step 3: Cross multiply
    448,626.51x = 672,668.58 × 178,796.19
  4. Step 4: Simplify right side
    448,626.51x = 120,270,579,236.71
  5. Step 5: Solve for x
    x = 120,270,579,236.71/448,626.51
  6. Step 6: Final answer
    x = 268,086.21

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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.