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Finding the Fourth Proportional to 169,671.75, 254,332.64 and 76,243.11

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Solution

The fourth proportional to 169,671.75, 254,332.64 and 76,243.11 is: 114,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,671.75 : 254,332.64 = 76,243.11 : x
  2. Step 2: Convert to fraction form
    169,671.75/254,332.64 = 76,243.11/x
  3. Step 3: Cross multiply
    169,671.75x = 254,332.64 × 76,243.11
  4. Step 4: Simplify right side
    169,671.75x = 19,391,110,684.97
  5. Step 5: Solve for x
    x = 19,391,110,684.97/169,671.75
  6. Step 6: Final answer
    x = 114,286.03

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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.