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Finding the Fourth Proportional to 273,245.09, 407,151.30 and 243,433.85

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Solution

The fourth proportional to 273,245.09, 407,151.30 and 243,433.85 is: 362,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,245.09 : 407,151.30 = 243,433.85 : x
  2. Step 2: Convert to fraction form
    273,245.09/407,151.30 = 243,433.85/x
  3. Step 3: Cross multiply
    273,245.09x = 407,151.30 × 243,433.85
  4. Step 4: Simplify right side
    273,245.09x = 99,114,407,274.34
  5. Step 5: Solve for x
    x = 99,114,407,274.34/273,245.09
  6. Step 6: Final answer
    x = 362,730.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.