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Finding the Fourth Proportional to 90,951.53, 136,394.03 and 34,763.86

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Solution

The fourth proportional to 90,951.53, 136,394.03 and 34,763.86 is: 52,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.53 : 136,394.03 = 34,763.86 : x
  2. Step 2: Convert to fraction form
    90,951.53/136,394.03 = 34,763.86/x
  3. Step 3: Cross multiply
    90,951.53x = 136,394.03 × 34,763.86
  4. Step 4: Simplify right side
    90,951.53x = 4,741,582,281.79
  5. Step 5: Solve for x
    x = 4,741,582,281.79/90,951.53
  6. Step 6: Final answer
    x = 52,133.07

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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.