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Finding the Fourth Proportional to 76,086.63, 113,967.41 and 61,790.67

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Solution

The fourth proportional to 76,086.63, 113,967.41 and 61,790.67 is: 92,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,086.63 : 113,967.41 = 61,790.67 : x
  2. Step 2: Convert to fraction form
    76,086.63/113,967.41 = 61,790.67/x
  3. Step 3: Cross multiply
    76,086.63x = 113,967.41 × 61,790.67
  4. Step 4: Simplify right side
    76,086.63x = 7,042,122,313.11
  5. Step 5: Solve for x
    x = 7,042,122,313.11/76,086.63
  6. Step 6: Final answer
    x = 92,554.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.