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Finding the Fourth Proportional to 253,900.01, 380,773.24 and 76,359.89

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Solution

The fourth proportional to 253,900.01, 380,773.24 and 76,359.89 is: 114,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,900.01 : 380,773.24 = 76,359.89 : x
  2. Step 2: Convert to fraction form
    253,900.01/380,773.24 = 76,359.89/x
  3. Step 3: Cross multiply
    253,900.01x = 380,773.24 × 76,359.89
  4. Step 4: Simplify right side
    253,900.01x = 29,075,800,626.58
  5. Step 5: Solve for x
    x = 29,075,800,626.58/253,900.01
  6. Step 6: Final answer
    x = 114,516.74

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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.