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Finding the Fourth Proportional to 392,735.88, 589,059.71 and 108,466.85

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Solution

The fourth proportional to 392,735.88, 589,059.71 and 108,466.85 is: 162,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,735.88 : 589,059.71 = 108,466.85 : x
  2. Step 2: Convert to fraction form
    392,735.88/589,059.71 = 108,466.85/x
  3. Step 3: Cross multiply
    392,735.88x = 589,059.71 × 108,466.85
  4. Step 4: Simplify right side
    392,735.88x = 63,893,447,717.98
  5. Step 5: Solve for x
    x = 63,893,447,717.98/392,735.88
  6. Step 6: Final answer
    x = 162,688.08

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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.