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Finding the Fourth Proportional to 259,466.43, 358,063.52 and 140,234.43

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Solution

The fourth proportional to 259,466.43, 358,063.52 and 140,234.43 is: 193,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,466.43 : 358,063.52 = 140,234.43 : x
  2. Step 2: Convert to fraction form
    259,466.43/358,063.52 = 140,234.43/x
  3. Step 3: Cross multiply
    259,466.43x = 358,063.52 × 140,234.43
  4. Step 4: Simplify right side
    259,466.43x = 50,212,832,929.82
  5. Step 5: Solve for x
    x = 50,212,832,929.82/259,466.43
  6. Step 6: Final answer
    x = 193,523.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.