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Finding the Fourth Proportional to 379,849.44, 569,806.56 and 99,366.24

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Solution

The fourth proportional to 379,849.44, 569,806.56 and 99,366.24 is: 149,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,849.44 : 569,806.56 = 99,366.24 : x
  2. Step 2: Convert to fraction form
    379,849.44/569,806.56 = 99,366.24/x
  3. Step 3: Cross multiply
    379,849.44x = 569,806.56 × 99,366.24
  4. Step 4: Simplify right side
    379,849.44x = 56,619,535,394.53
  5. Step 5: Solve for x
    x = 56,619,535,394.53/379,849.44
  6. Step 6: Final answer
    x = 149,057.84

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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.