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Finding the Fourth Proportional to 115,411.60, 173,093.10 and 48,853.90

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Solution

The fourth proportional to 115,411.60, 173,093.10 and 48,853.90 is: 73,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,411.60 : 173,093.10 = 48,853.90 : x
  2. Step 2: Convert to fraction form
    115,411.60/173,093.10 = 48,853.90/x
  3. Step 3: Cross multiply
    115,411.60x = 173,093.10 × 48,853.90
  4. Step 4: Simplify right side
    115,411.60x = 8,456,272,998.09
  5. Step 5: Solve for x
    x = 8,456,272,998.09/115,411.60
  6. Step 6: Final answer
    x = 73,270.56

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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.