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Finding the Fourth Proportional to 70,977.99, 97,782.51 and 58,832.85

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Solution

The fourth proportional to 70,977.99, 97,782.51 and 58,832.85 is: 81,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,977.99 : 97,782.51 = 58,832.85 : x
  2. Step 2: Convert to fraction form
    70,977.99/97,782.51 = 58,832.85/x
  3. Step 3: Cross multiply
    70,977.99x = 97,782.51 × 58,832.85
  4. Step 4: Simplify right side
    70,977.99x = 5,752,823,743.45
  5. Step 5: Solve for x
    x = 5,752,823,743.45/70,977.99
  6. Step 6: Final answer
    x = 81,050.81

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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.