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Finding the Fourth Proportional to 108,453.85, 162,702.74 and 38,382.37

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Solution

The fourth proportional to 108,453.85, 162,702.74 and 38,382.37 is: 57,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,453.85 : 162,702.74 = 38,382.37 : x
  2. Step 2: Convert to fraction form
    108,453.85/162,702.74 = 38,382.37/x
  3. Step 3: Cross multiply
    108,453.85x = 162,702.74 × 38,382.37
  4. Step 4: Simplify right side
    108,453.85x = 6,244,916,455.89
  5. Step 5: Solve for x
    x = 6,244,916,455.89/108,453.85
  6. Step 6: Final answer
    x = 57,581.33

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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.