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Finding the Fourth Proportional to 53,679.66, 80,158.00 and 43,838.46

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Solution

The fourth proportional to 53,679.66, 80,158.00 and 43,838.46 is: 65,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,679.66 : 80,158.00 = 43,838.46 : x
  2. Step 2: Convert to fraction form
    53,679.66/80,158.00 = 43,838.46/x
  3. Step 3: Cross multiply
    53,679.66x = 80,158.00 × 43,838.46
  4. Step 4: Simplify right side
    53,679.66x = 3,514,002,821.09
  5. Step 5: Solve for x
    x = 3,514,002,821.09/53,679.66
  6. Step 6: Final answer
    x = 65,462.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.