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Finding the Fourth Proportional to 125,912.52, 173,758.96 and 69,323.90

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Solution

The fourth proportional to 125,912.52, 173,758.96 and 69,323.90 is: 95,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,912.52 : 173,758.96 = 69,323.90 : x
  2. Step 2: Convert to fraction form
    125,912.52/173,758.96 = 69,323.90/x
  3. Step 3: Cross multiply
    125,912.52x = 173,758.96 × 69,323.90
  4. Step 4: Simplify right side
    125,912.52x = 12,045,648,636.60
  5. Step 5: Solve for x
    x = 12,045,648,636.60/125,912.52
  6. Step 6: Final answer
    x = 95,666.80

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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.