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Finding the Fourth Proportional to 178,054.80, 267,082.20 and 84,742.80

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Solution

The fourth proportional to 178,054.80, 267,082.20 and 84,742.80 is: 127,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,054.80 : 267,082.20 = 84,742.80 : x
  2. Step 2: Convert to fraction form
    178,054.80/267,082.20 = 84,742.80/x
  3. Step 3: Cross multiply
    178,054.80x = 267,082.20 × 84,742.80
  4. Step 4: Simplify right side
    178,054.80x = 22,633,293,458.16
  5. Step 5: Solve for x
    x = 22,633,293,458.16/178,054.80
  6. Step 6: Final answer
    x = 127,114.20

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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.