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Finding the Fourth Proportional to 82,791.81, 124,089.93 and 35,393.04

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Solution

The fourth proportional to 82,791.81, 124,089.93 and 35,393.04 is: 53,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,791.81 : 124,089.93 = 35,393.04 : x
  2. Step 2: Convert to fraction form
    82,791.81/124,089.93 = 35,393.04/x
  3. Step 3: Cross multiply
    82,791.81x = 124,089.93 × 35,393.04
  4. Step 4: Simplify right side
    82,791.81x = 4,391,919,856.09
  5. Step 5: Solve for x
    x = 4,391,919,856.09/82,791.81
  6. Step 6: Final answer
    x = 53,047.76

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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.