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Finding the Fourth Proportional to 90,771.95, 136,157.90 and 27,592.58

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Solution

The fourth proportional to 90,771.95, 136,157.90 and 27,592.58 is: 41,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,771.95 : 136,157.90 = 27,592.58 : x
  2. Step 2: Convert to fraction form
    90,771.95/136,157.90 = 27,592.58/x
  3. Step 3: Cross multiply
    90,771.95x = 136,157.90 × 27,592.58
  4. Step 4: Simplify right side
    90,771.95x = 3,756,946,929.63
  5. Step 5: Solve for x
    x = 3,756,946,929.63/90,771.95
  6. Step 6: Final answer
    x = 41,388.86

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1.5x scale

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.