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Finding the Fourth Proportional to 79,249.86, 109,242.27 and 59,076

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Solution

The fourth proportional to 79,249.86, 109,242.27 and 59,076 is: 81,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,249.86 : 109,242.27 = 59,076 : x
  2. Step 2: Convert to fraction form
    79,249.86/109,242.27 = 59,076/x
  3. Step 3: Cross multiply
    79,249.86x = 109,242.27 × 59,076
  4. Step 4: Simplify right side
    79,249.86x = 6,453,596,342.52
  5. Step 5: Solve for x
    x = 6,453,596,342.52/79,249.86
  6. Step 6: Final answer
    x = 81,433.54

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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.