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Finding the Fourth Proportional to 270,225.28, 405,358.62 and 92,730.88

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Solution

The fourth proportional to 270,225.28, 405,358.62 and 92,730.88 is: 139,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,225.28 : 405,358.62 = 92,730.88 : x
  2. Step 2: Convert to fraction form
    270,225.28/405,358.62 = 92,730.88/x
  3. Step 3: Cross multiply
    270,225.28x = 405,358.62 × 92,730.88
  4. Step 4: Simplify right side
    270,225.28x = 37,589,261,548.19
  5. Step 5: Solve for x
    x = 37,589,261,548.19/270,225.28
  6. Step 6: Final answer
    x = 139,103.42

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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.