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Finding the Fourth Proportional to 296,442.55, 444,676.13 and 86,080.49

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Solution

The fourth proportional to 296,442.55, 444,676.13 and 86,080.49 is: 129,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,442.55 : 444,676.13 = 86,080.49 : x
  2. Step 2: Convert to fraction form
    296,442.55/444,676.13 = 86,080.49/x
  3. Step 3: Cross multiply
    296,442.55x = 444,676.13 × 86,080.49
  4. Step 4: Simplify right side
    296,442.55x = 38,277,936,507.92
  5. Step 5: Solve for x
    x = 38,277,936,507.92/296,442.55
  6. Step 6: Final answer
    x = 129,124.30

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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.