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Finding the Fourth Proportional to 90,591.63, 135,837.63 and 48,521.04

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Solution

The fourth proportional to 90,591.63, 135,837.63 and 48,521.04 is: 72,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,591.63 : 135,837.63 = 48,521.04 : x
  2. Step 2: Convert to fraction form
    90,591.63/135,837.63 = 48,521.04/x
  3. Step 3: Cross multiply
    90,591.63x = 135,837.63 × 48,521.04
  4. Step 4: Simplify right side
    90,591.63x = 6,590,983,078.74
  5. Step 5: Solve for x
    x = 6,590,983,078.74/90,591.63
  6. Step 6: Final answer
    x = 72,754.88

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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.