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Finding the Fourth Proportional to 91,334.64, 136,990.88 and 24,770.64

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Solution

The fourth proportional to 91,334.64, 136,990.88 and 24,770.64 is: 37,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,334.64 : 136,990.88 = 24,770.64 : x
  2. Step 2: Convert to fraction form
    91,334.64/136,990.88 = 24,770.64/x
  3. Step 3: Cross multiply
    91,334.64x = 136,990.88 × 24,770.64
  4. Step 4: Simplify right side
    91,334.64x = 3,393,351,771.76
  5. Step 5: Solve for x
    x = 3,393,351,771.76/91,334.64
  6. Step 6: Final answer
    x = 37,152.96

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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.