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Finding the Fourth Proportional to 76,079.79, 114,119.73 and 28,682.01

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Solution

The fourth proportional to 76,079.79, 114,119.73 and 28,682.01 is: 43,023.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,079.79 : 114,119.73 = 28,682.01 : x
  2. Step 2: Convert to fraction form
    76,079.79/114,119.73 = 28,682.01/x
  3. Step 3: Cross multiply
    76,079.79x = 114,119.73 × 28,682.01
  4. Step 4: Simplify right side
    76,079.79x = 3,273,183,237.06
  5. Step 5: Solve for x
    x = 3,273,183,237.06/76,079.79
  6. Step 6: Final answer
    x = 43,023.03

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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.