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Finding the Fourth Proportional to 242,789.70, 364,165.10 and 82,851.96

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Solution

The fourth proportional to 242,789.70, 364,165.10 and 82,851.96 is: 124,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,789.70 : 364,165.10 = 82,851.96 : x
  2. Step 2: Convert to fraction form
    242,789.70/364,165.10 = 82,851.96/x
  3. Step 3: Cross multiply
    242,789.70x = 364,165.10 × 82,851.96
  4. Step 4: Simplify right side
    242,789.70x = 30,171,792,298.60
  5. Step 5: Solve for x
    x = 30,171,792,298.60/242,789.70
  6. Step 6: Final answer
    x = 124,271.30

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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.