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Finding the Fourth Proportional to 376,356.67, 519,372.94 and 223,425.53

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Solution

The fourth proportional to 376,356.67, 519,372.94 and 223,425.53 is: 308,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,356.67 : 519,372.94 = 223,425.53 : x
  2. Step 2: Convert to fraction form
    376,356.67/519,372.94 = 223,425.53/x
  3. Step 3: Cross multiply
    376,356.67x = 519,372.94 × 223,425.53
  4. Step 4: Simplify right side
    376,356.67x = 116,041,174,387.16
  5. Step 5: Solve for x
    x = 116,041,174,387.16/376,356.67
  6. Step 6: Final answer
    x = 308,327.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.