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Finding the Fourth Proportional to 180,336.66, 270,579.50 and 79,082.31

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Solution

The fourth proportional to 180,336.66, 270,579.50 and 79,082.31 is: 118,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,336.66 : 270,579.50 = 79,082.31 : x
  2. Step 2: Convert to fraction form
    180,336.66/270,579.50 = 79,082.31/x
  3. Step 3: Cross multiply
    180,336.66x = 270,579.50 × 79,082.31
  4. Step 4: Simplify right side
    180,336.66x = 21,398,052,966.01
  5. Step 5: Solve for x
    x = 21,398,052,966.01/180,336.66
  6. Step 6: Final answer
    x = 118,656.15

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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.