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Finding the Fourth Proportional to 120,762.94, 166,658.07 and 67,047.96

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Solution

The fourth proportional to 120,762.94, 166,658.07 and 67,047.96 is: 92,529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,762.94 : 166,658.07 = 67,047.96 : x
  2. Step 2: Convert to fraction form
    120,762.94/166,658.07 = 67,047.96/x
  3. Step 3: Cross multiply
    120,762.94x = 166,658.07 × 67,047.96
  4. Step 4: Simplify right side
    120,762.94x = 11,174,083,452.99
  5. Step 5: Solve for x
    x = 11,174,083,452.99/120,762.94
  6. Step 6: Final answer
    x = 92,529.08

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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.