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Finding the Fourth Proportional to 111,363.84, 153,684.48 and 67,755.84

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Solution

The fourth proportional to 111,363.84, 153,684.48 and 67,755.84 is: 93,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,363.84 : 153,684.48 = 67,755.84 : x
  2. Step 2: Convert to fraction form
    111,363.84/153,684.48 = 67,755.84/x
  3. Step 3: Cross multiply
    111,363.84x = 153,684.48 × 67,755.84
  4. Step 4: Simplify right side
    111,363.84x = 10,413,021,037.36
  5. Step 5: Solve for x
    x = 10,413,021,037.36/111,363.84
  6. Step 6: Final answer
    x = 93,504.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.