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Finding the Fourth Proportional to 89,008.60, 133,469.70 and 49,523.80

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Solution

The fourth proportional to 89,008.60, 133,469.70 and 49,523.80 is: 74,261.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,008.60 : 133,469.70 = 49,523.80 : x
  2. Step 2: Convert to fraction form
    89,008.60/133,469.70 = 49,523.80/x
  3. Step 3: Cross multiply
    89,008.60x = 133,469.70 × 49,523.80
  4. Step 4: Simplify right side
    89,008.60x = 6,609,926,728.86
  5. Step 5: Solve for x
    x = 6,609,926,728.86/89,008.60
  6. Step 6: Final answer
    x = 74,261.66

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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.