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Finding the Fourth Proportional to 117,234.47, 175,667.29 and 90,645.41

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Solution

The fourth proportional to 117,234.47, 175,667.29 and 90,645.41 is: 135,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,234.47 : 175,667.29 = 90,645.41 : x
  2. Step 2: Convert to fraction form
    117,234.47/175,667.29 = 90,645.41/x
  3. Step 3: Cross multiply
    117,234.47x = 175,667.29 × 90,645.41
  4. Step 4: Simplify right side
    117,234.47x = 15,923,433,525.64
  5. Step 5: Solve for x
    x = 15,923,433,525.64/117,234.47
  6. Step 6: Final answer
    x = 135,825.53

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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.