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Finding the Fourth Proportional to 115,336, 173,004.16 and 27,784

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Solution

The fourth proportional to 115,336, 173,004.16 and 27,784 is: 41,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336 : 173,004.16 = 27,784 : x
  2. Step 2: Convert to fraction form
    115,336/173,004.16 = 27,784/x
  3. Step 3: Cross multiply
    115,336x = 173,004.16 × 27,784
  4. Step 4: Simplify right side
    115,336x = 4,806,747,581.44
  5. Step 5: Solve for x
    x = 4,806,747,581.44/115,336
  6. Step 6: Final answer
    x = 41,676.04

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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.