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Finding the Fourth Proportional to 79,274.99, 109,398.66 and 43,464.92

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Solution

The fourth proportional to 79,274.99, 109,398.66 and 43,464.92 is: 59,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274.99 : 109,398.66 = 43,464.92 : x
  2. Step 2: Convert to fraction form
    79,274.99/109,398.66 = 43,464.92/x
  3. Step 3: Cross multiply
    79,274.99x = 109,398.66 × 43,464.92
  4. Step 4: Simplify right side
    79,274.99x = 4,755,003,295.02
  5. Step 5: Solve for x
    x = 4,755,003,295.02/79,274.99
  6. Step 6: Final answer
    x = 59,981.13

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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.