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Finding the Fourth Proportional to 293,730.92, 440,506.68 and 203,128.72

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Solution

The fourth proportional to 293,730.92, 440,506.68 and 203,128.72 is: 304,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,730.92 : 440,506.68 = 203,128.72 : x
  2. Step 2: Convert to fraction form
    293,730.92/440,506.68 = 203,128.72/x
  3. Step 3: Cross multiply
    293,730.92x = 440,506.68 × 203,128.72
  4. Step 4: Simplify right side
    293,730.92x = 89,479,555,857.32
  5. Step 5: Solve for x
    x = 89,479,555,857.32/293,730.92
  6. Step 6: Final answer
    x = 304,631.05

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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.