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Finding the Fourth Proportional to 114,324.97, 171,425.60 and 90,783.96

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Solution

The fourth proportional to 114,324.97, 171,425.60 and 90,783.96 is: 136,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,324.97 : 171,425.60 = 90,783.96 : x
  2. Step 2: Convert to fraction form
    114,324.97/171,425.60 = 90,783.96/x
  3. Step 3: Cross multiply
    114,324.97x = 171,425.60 × 90,783.96
  4. Step 4: Simplify right side
    114,324.97x = 15,562,695,886.45
  5. Step 5: Solve for x
    x = 15,562,695,886.45/114,324.97
  6. Step 6: Final answer
    x = 136,126.83

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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.