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Finding the Fourth Proportional to 81,493.63, 122,127.68 and 58,823.56

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Solution

The fourth proportional to 81,493.63, 122,127.68 and 58,823.56 is: 88,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,493.63 : 122,127.68 = 58,823.56 : x
  2. Step 2: Convert to fraction form
    81,493.63/122,127.68 = 58,823.56/x
  3. Step 3: Cross multiply
    81,493.63x = 122,127.68 × 58,823.56
  4. Step 4: Simplify right side
    81,493.63x = 7,183,984,301.50
  5. Step 5: Solve for x
    x = 7,183,984,301.50/81,493.63
  6. Step 6: Final answer
    x = 88,153.94

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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.