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Finding the Fourth Proportional to 79,324.99, 109,461.51 and 45,326.72

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Solution

The fourth proportional to 79,324.99, 109,461.51 and 45,326.72 is: 62,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,324.99 : 109,461.51 = 45,326.72 : x
  2. Step 2: Convert to fraction form
    79,324.99/109,461.51 = 45,326.72/x
  3. Step 3: Cross multiply
    79,324.99x = 109,461.51 × 45,326.72
  4. Step 4: Simplify right side
    79,324.99x = 4,961,531,488.20
  5. Step 5: Solve for x
    x = 4,961,531,488.20/79,324.99
  6. Step 6: Final answer
    x = 62,546.89

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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.