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Finding the Fourth Proportional to 365,996.48, 548,978.55 and 99,756.97

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Solution

The fourth proportional to 365,996.48, 548,978.55 and 99,756.97 is: 149,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,996.48 : 548,978.55 = 99,756.97 : x
  2. Step 2: Convert to fraction form
    365,996.48/548,978.55 = 99,756.97/x
  3. Step 3: Cross multiply
    365,996.48x = 548,978.55 × 99,756.97
  4. Step 4: Simplify right side
    365,996.48x = 54,764,434,996.46
  5. Step 5: Solve for x
    x = 54,764,434,996.46/365,996.48
  6. Step 6: Final answer
    x = 149,631.04

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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.