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Finding the Fourth Proportional to 70,093.74, 96,737.88 and 39,886.44

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Solution

The fourth proportional to 70,093.74, 96,737.88 and 39,886.44 is: 55,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,093.74 : 96,737.88 = 39,886.44 : x
  2. Step 2: Convert to fraction form
    70,093.74/96,737.88 = 39,886.44/x
  3. Step 3: Cross multiply
    70,093.74x = 96,737.88 × 39,886.44
  4. Step 4: Simplify right side
    70,093.74x = 3,858,529,646.35
  5. Step 5: Solve for x
    x = 3,858,529,646.35/70,093.74
  6. Step 6: Final answer
    x = 55,048.13

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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.