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Finding the Fourth Proportional to 253,008.34, 379,383.57 and 84,468.10

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Solution

The fourth proportional to 253,008.34, 379,383.57 and 84,468.10 is: 126,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,008.34 : 379,383.57 = 84,468.10 : x
  2. Step 2: Convert to fraction form
    253,008.34/379,383.57 = 84,468.10/x
  3. Step 3: Cross multiply
    253,008.34x = 379,383.57 × 84,468.10
  4. Step 4: Simplify right side
    253,008.34x = 32,045,809,329.12
  5. Step 5: Solve for x
    x = 32,045,809,329.12/253,008.34
  6. Step 6: Final answer
    x = 126,659.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.