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Finding the Fourth Proportional to 79,310.88, 109,490.40 and 62,326.08

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Solution

The fourth proportional to 79,310.88, 109,490.40 and 62,326.08 is: 86,042.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,310.88 : 109,490.40 = 62,326.08 : x
  2. Step 2: Convert to fraction form
    79,310.88/109,490.40 = 62,326.08/x
  3. Step 3: Cross multiply
    79,310.88x = 109,490.40 × 62,326.08
  4. Step 4: Simplify right side
    79,310.88x = 6,824,107,429.63
  5. Step 5: Solve for x
    x = 6,824,107,429.63/79,310.88
  6. Step 6: Final answer
    x = 86,042.51

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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.