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Finding the Fourth Proportional to 79,383.65, 109,553.31 and 43,573.28

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Solution

The fourth proportional to 79,383.65, 109,553.31 and 43,573.28 is: 60,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,383.65 : 109,553.31 = 43,573.28 : x
  2. Step 2: Convert to fraction form
    79,383.65/109,553.31 = 43,573.28/x
  3. Step 3: Cross multiply
    79,383.65x = 109,553.31 × 43,573.28
  4. Step 4: Simplify right side
    79,383.65x = 4,773,596,503.79
  5. Step 5: Solve for x
    x = 4,773,596,503.79/79,383.65
  6. Step 6: Final answer
    x = 60,133.25

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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.