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Finding the Fourth Proportional to 125,900.53, 173,743.40 and 69,311.91

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Solution

The fourth proportional to 125,900.53, 173,743.40 and 69,311.91 is: 95,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,900.53 : 173,743.40 = 69,311.91 : x
  2. Step 2: Convert to fraction form
    125,900.53/173,743.40 = 69,311.91/x
  3. Step 3: Cross multiply
    125,900.53x = 173,743.40 × 69,311.91
  4. Step 4: Simplify right side
    125,900.53x = 12,042,486,903.89
  5. Step 5: Solve for x
    x = 12,042,486,903.89/125,900.53
  6. Step 6: Final answer
    x = 95,650.80

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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.