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Finding the Fourth Proportional to 104,893.52, 144,771.77 and 61,870.37

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Solution

The fourth proportional to 104,893.52, 144,771.77 and 61,870.37 is: 85,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,893.52 : 144,771.77 = 61,870.37 : x
  2. Step 2: Convert to fraction form
    104,893.52/144,771.77 = 61,870.37/x
  3. Step 3: Cross multiply
    104,893.52x = 144,771.77 × 61,870.37
  4. Step 4: Simplify right side
    104,893.52x = 8,957,082,406.27
  5. Step 5: Solve for x
    x = 8,957,082,406.27/104,893.52
  6. Step 6: Final answer
    x = 85,392.15

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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.