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Finding the Fourth Proportional to 547,651.11, 821,554.41 and 168,603.35

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Solution

The fourth proportional to 547,651.11, 821,554.41 and 168,603.35 is: 252,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,651.11 : 821,554.41 = 168,603.35 : x
  2. Step 2: Convert to fraction form
    547,651.11/821,554.41 = 168,603.35/x
  3. Step 3: Cross multiply
    547,651.11x = 821,554.41 × 168,603.35
  4. Step 4: Simplify right side
    547,651.11x = 138,516,823,857.09
  5. Step 5: Solve for x
    x = 138,516,823,857.09/547,651.11
  6. Step 6: Final answer
    x = 252,928.96

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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.