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Finding the Fourth Proportional to 90,951.58, 136,394.11 and 34,763.91

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Solution

The fourth proportional to 90,951.58, 136,394.11 and 34,763.91 is: 52,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.58 : 136,394.11 = 34,763.91 : x
  2. Step 2: Convert to fraction form
    90,951.58/136,394.11 = 34,763.91/x
  3. Step 3: Cross multiply
    90,951.58x = 136,394.11 × 34,763.91
  4. Step 4: Simplify right side
    90,951.58x = 4,741,592,564.57
  5. Step 5: Solve for x
    x = 4,741,592,564.57/90,951.58
  6. Step 6: Final answer
    x = 52,133.15

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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.