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Finding the Fourth Proportional to 70,922.88, 97,873.77 and 39,091.91

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Solution

The fourth proportional to 70,922.88, 97,873.77 and 39,091.91 is: 53,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,922.88 : 97,873.77 = 39,091.91 : x
  2. Step 2: Convert to fraction form
    70,922.88/97,873.77 = 39,091.91/x
  3. Step 3: Cross multiply
    70,922.88x = 97,873.77 × 39,091.91
  4. Step 4: Simplify right side
    70,922.88x = 3,826,072,118.83
  5. Step 5: Solve for x
    x = 3,826,072,118.83/70,922.88
  6. Step 6: Final answer
    x = 53,946.94

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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.