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Finding the Fourth Proportional to 101,580.03, 152,311.71 and 54,136.71

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Solution

The fourth proportional to 101,580.03, 152,311.71 and 54,136.71 is: 81,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,580.03 : 152,311.71 = 54,136.71 : x
  2. Step 2: Convert to fraction form
    101,580.03/152,311.71 = 54,136.71/x
  3. Step 3: Cross multiply
    101,580.03x = 152,311.71 × 54,136.71
  4. Step 4: Simplify right side
    101,580.03x = 8,245,654,873.87
  5. Step 5: Solve for x
    x = 8,245,654,873.87/101,580.03
  6. Step 6: Final answer
    x = 81,173.98

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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.