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Finding the Fourth Proportional to 140,745.60, 211,064.94 and 45,953.28

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Solution

The fourth proportional to 140,745.60, 211,064.94 and 45,953.28 is: 68,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.60 : 211,064.94 = 45,953.28 : x
  2. Step 2: Convert to fraction form
    140,745.60/211,064.94 = 45,953.28/x
  3. Step 3: Cross multiply
    140,745.60x = 211,064.94 × 45,953.28
  4. Step 4: Simplify right side
    140,745.60x = 9,699,126,286.00
  5. Step 5: Solve for x
    x = 9,699,126,286.00/140,745.60
  6. Step 6: Final answer
    x = 68,912.47

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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.