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Finding the Fourth Proportional to 90,760.32, 136,157.76 and 35,352

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Solution

The fourth proportional to 90,760.32, 136,157.76 and 35,352 is: 53,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,760.32 : 136,157.76 = 35,352 : x
  2. Step 2: Convert to fraction form
    90,760.32/136,157.76 = 35,352/x
  3. Step 3: Cross multiply
    90,760.32x = 136,157.76 × 35,352
  4. Step 4: Simplify right side
    90,760.32x = 4,813,449,131.52
  5. Step 5: Solve for x
    x = 4,813,449,131.52/90,760.32
  6. Step 6: Final answer
    x = 53,034.73

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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.