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Finding the Fourth Proportional to 293,203.20, 439,718.40 and 115,651.20

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Solution

The fourth proportional to 293,203.20, 439,718.40 and 115,651.20 is: 173,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,203.20 : 439,718.40 = 115,651.20 : x
  2. Step 2: Convert to fraction form
    293,203.20/439,718.40 = 115,651.20/x
  3. Step 3: Cross multiply
    293,203.20x = 439,718.40 × 115,651.20
  4. Step 4: Simplify right side
    293,203.20x = 50,853,960,622.08
  5. Step 5: Solve for x
    x = 50,853,960,622.08/293,203.20
  6. Step 6: Final answer
    x = 173,442.72

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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.