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Finding the Fourth Proportional to 199,676.73, 299,562.79 and 64,740.86

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Solution

The fourth proportional to 199,676.73, 299,562.79 and 64,740.86 is: 97,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,676.73 : 299,562.79 = 64,740.86 : x
  2. Step 2: Convert to fraction form
    199,676.73/299,562.79 = 64,740.86/x
  3. Step 3: Cross multiply
    199,676.73x = 299,562.79 × 64,740.86
  4. Step 4: Simplify right side
    199,676.73x = 19,393,952,648.60
  5. Step 5: Solve for x
    x = 19,393,952,648.60/199,676.73
  6. Step 6: Final answer
    x = 97,126.75

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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.