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Finding the Fourth Proportional to 255,227.49, 382,811.94 and 68,253.57

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Solution

The fourth proportional to 255,227.49, 382,811.94 and 68,253.57 is: 102,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,227.49 : 382,811.94 = 68,253.57 : x
  2. Step 2: Convert to fraction form
    255,227.49/382,811.94 = 68,253.57/x
  3. Step 3: Cross multiply
    255,227.49x = 382,811.94 × 68,253.57
  4. Step 4: Simplify right side
    255,227.49x = 26,128,281,543.63
  5. Step 5: Solve for x
    x = 26,128,281,543.63/255,227.49
  6. Step 6: Final answer
    x = 102,372.52

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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.