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Finding the Fourth Proportional to 123,406.92, 185,109.77 and 29,912.67

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Solution

The fourth proportional to 123,406.92, 185,109.77 and 29,912.67 is: 44,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,406.92 : 185,109.77 = 29,912.67 : x
  2. Step 2: Convert to fraction form
    123,406.92/185,109.77 = 29,912.67/x
  3. Step 3: Cross multiply
    123,406.92x = 185,109.77 × 29,912.67
  4. Step 4: Simplify right side
    123,406.92x = 5,537,127,463.79
  5. Step 5: Solve for x
    x = 5,537,127,463.79/123,406.92
  6. Step 6: Final answer
    x = 44,868.86

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1.5x scale

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.