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Finding the Fourth Proportional to 322,551.81, 445,176.51 and 186,668.49

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Solution

The fourth proportional to 322,551.81, 445,176.51 and 186,668.49 is: 257,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,551.81 : 445,176.51 = 186,668.49 : x
  2. Step 2: Convert to fraction form
    322,551.81/445,176.51 = 186,668.49/x
  3. Step 3: Cross multiply
    322,551.81x = 445,176.51 × 186,668.49
  4. Step 4: Simplify right side
    322,551.81x = 83,100,426,205.16
  5. Step 5: Solve for x
    x = 83,100,426,205.16/322,551.81
  6. Step 6: Final answer
    x = 257,634.35

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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.