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Finding the Fourth Proportional to 70,923.73, 97,874.74 and 39,093.31

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Solution

The fourth proportional to 70,923.73, 97,874.74 and 39,093.31 is: 53,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,923.73 : 97,874.74 = 39,093.31 : x
  2. Step 2: Convert to fraction form
    70,923.73/97,874.74 = 39,093.31/x
  3. Step 3: Cross multiply
    70,923.73x = 97,874.74 × 39,093.31
  4. Step 4: Simplify right side
    70,923.73x = 3,826,247,502.90
  5. Step 5: Solve for x
    x = 3,826,247,502.90/70,923.73
  6. Step 6: Final answer
    x = 53,948.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.