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Finding the Fourth Proportional to 173,638.40, 260,457.60 and 48,979.44

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Solution

The fourth proportional to 173,638.40, 260,457.60 and 48,979.44 is: 73,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,638.40 : 260,457.60 = 48,979.44 : x
  2. Step 2: Convert to fraction form
    173,638.40/260,457.60 = 48,979.44/x
  3. Step 3: Cross multiply
    173,638.40x = 260,457.60 × 48,979.44
  4. Step 4: Simplify right side
    173,638.40x = 12,757,067,391.74
  5. Step 5: Solve for x
    x = 12,757,067,391.74/173,638.40
  6. Step 6: Final answer
    x = 73,469.16

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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.