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Finding the Fourth Proportional to 251,397.99, 377,015.98 and 82,879.11

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Solution

The fourth proportional to 251,397.99, 377,015.98 and 82,879.11 is: 124,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,397.99 : 377,015.98 = 82,879.11 : x
  2. Step 2: Convert to fraction form
    251,397.99/377,015.98 = 82,879.11/x
  3. Step 3: Cross multiply
    251,397.99x = 377,015.98 × 82,879.11
  4. Step 4: Simplify right side
    251,397.99x = 31,246,748,878.18
  5. Step 5: Solve for x
    x = 31,246,748,878.18/251,397.99
  6. Step 6: Final answer
    x = 124,291.96

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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.