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Finding the Fourth Proportional to 125,059.63, 187,690.59 and 96,912.94

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Solution

The fourth proportional to 125,059.63, 187,690.59 and 96,912.94 is: 145,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,059.63 : 187,690.59 = 96,912.94 : x
  2. Step 2: Convert to fraction form
    125,059.63/187,690.59 = 96,912.94/x
  3. Step 3: Cross multiply
    125,059.63x = 187,690.59 × 96,912.94
  4. Step 4: Simplify right side
    125,059.63x = 18,189,646,418.01
  5. Step 5: Solve for x
    x = 18,189,646,418.01/125,059.63
  6. Step 6: Final answer
    x = 145,447.79

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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.