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Finding the Fourth Proportional to 177,829.60, 266,647.20 and 72,529.60

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Solution

The fourth proportional to 177,829.60, 266,647.20 and 72,529.60 is: 108,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,829.60 : 266,647.20 = 72,529.60 : x
  2. Step 2: Convert to fraction form
    177,829.60/266,647.20 = 72,529.60/x
  3. Step 3: Cross multiply
    177,829.60x = 266,647.20 × 72,529.60
  4. Step 4: Simplify right side
    177,829.60x = 19,339,814,757.12
  5. Step 5: Solve for x
    x = 19,339,814,757.12/177,829.60
  6. Step 6: Final answer
    x = 108,754.76

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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.