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Finding the Fourth Proportional to 255,246.18, 382,869.24 and 68,252.82

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Solution

The fourth proportional to 255,246.18, 382,869.24 and 68,252.82 is: 102,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,246.18 : 382,869.24 = 68,252.82 : x
  2. Step 2: Convert to fraction form
    255,246.18/382,869.24 = 68,252.82/x
  3. Step 3: Cross multiply
    255,246.18x = 382,869.24 × 68,252.82
  4. Step 4: Simplify right side
    255,246.18x = 26,131,905,321.26
  5. Step 5: Solve for x
    x = 26,131,905,321.26/255,246.18
  6. Step 6: Final answer
    x = 102,379.22

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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.