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Finding the Fourth Proportional to 178,238.80, 267,358.20 and 73,133.20

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Solution

The fourth proportional to 178,238.80, 267,358.20 and 73,133.20 is: 109,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,238.80 : 267,358.20 = 73,133.20 : x
  2. Step 2: Convert to fraction form
    178,238.80/267,358.20 = 73,133.20/x
  3. Step 3: Cross multiply
    178,238.80x = 267,358.20 × 73,133.20
  4. Step 4: Simplify right side
    178,238.80x = 19,552,760,712.24
  5. Step 5: Solve for x
    x = 19,552,760,712.24/178,238.80
  6. Step 6: Final answer
    x = 109,699.80

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1.5x scale

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.