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Finding the Fourth Proportional to 81,592.88, 122,576.93 and 57,957.89

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Solution

The fourth proportional to 81,592.88, 122,576.93 and 57,957.89 is: 87,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,592.88 : 122,576.93 = 57,957.89 : x
  2. Step 2: Convert to fraction form
    81,592.88/122,576.93 = 57,957.89/x
  3. Step 3: Cross multiply
    81,592.88x = 122,576.93 × 57,957.89
  4. Step 4: Simplify right side
    81,592.88x = 7,104,299,540.15
  5. Step 5: Solve for x
    x = 7,104,299,540.15/81,592.88
  6. Step 6: Final answer
    x = 87,070.10

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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.