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Finding the Fourth Proportional to 58,751.36, 81,236.34 and 57,801.77

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Solution

The fourth proportional to 58,751.36, 81,236.34 and 57,801.77 is: 79,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,751.36 : 81,236.34 = 57,801.77 : x
  2. Step 2: Convert to fraction form
    58,751.36/81,236.34 = 57,801.77/x
  3. Step 3: Cross multiply
    58,751.36x = 81,236.34 × 57,801.77
  4. Step 4: Simplify right side
    58,751.36x = 4,695,603,834.14
  5. Step 5: Solve for x
    x = 4,695,603,834.14/58,751.36
  6. Step 6: Final answer
    x = 79,923.33

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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.