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Finding the Fourth Proportional to 264,724.28, 365,318.28 and 143,863.28

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Solution

The fourth proportional to 264,724.28, 365,318.28 and 143,863.28 is: 198,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,724.28 : 365,318.28 = 143,863.28 : x
  2. Step 2: Convert to fraction form
    264,724.28/365,318.28 = 143,863.28/x
  3. Step 3: Cross multiply
    264,724.28x = 365,318.28 × 143,863.28
  4. Step 4: Simplify right side
    264,724.28x = 52,555,886,004.76
  5. Step 5: Solve for x
    x = 52,555,886,004.76/264,724.28
  6. Step 6: Final answer
    x = 198,530.66

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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.