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Finding the Fourth Proportional to 149,035.94, 205,563.84 and 91,599.85

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Solution

The fourth proportional to 149,035.94, 205,563.84 and 91,599.85 is: 126,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,035.94 : 205,563.84 = 91,599.85 : x
  2. Step 2: Convert to fraction form
    149,035.94/205,563.84 = 91,599.85/x
  3. Step 3: Cross multiply
    149,035.94x = 205,563.84 × 91,599.85
  4. Step 4: Simplify right side
    149,035.94x = 18,829,617,423.33
  5. Step 5: Solve for x
    x = 18,829,617,423.33/149,035.94
  6. Step 6: Final answer
    x = 126,342.80

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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.