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Finding the Fourth Proportional to 79,959.72, 110,377.26 and 54,549.96

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Solution

The fourth proportional to 79,959.72, 110,377.26 and 54,549.96 is: 75,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,959.72 : 110,377.26 = 54,549.96 : x
  2. Step 2: Convert to fraction form
    79,959.72/110,377.26 = 54,549.96/x
  3. Step 3: Cross multiply
    79,959.72x = 110,377.26 × 54,549.96
  4. Step 4: Simplify right side
    79,959.72x = 6,021,075,117.91
  5. Step 5: Solve for x
    x = 6,021,075,117.91/79,959.72
  6. Step 6: Final answer
    x = 75,301.35

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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.