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Finding the Fourth Proportional to 253,867.52, 350,348.64 and 140,682.98

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Solution

The fourth proportional to 253,867.52, 350,348.64 and 140,682.98 is: 194,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,867.52 : 350,348.64 = 140,682.98 : x
  2. Step 2: Convert to fraction form
    253,867.52/350,348.64 = 140,682.98/x
  3. Step 3: Cross multiply
    253,867.52x = 350,348.64 × 140,682.98
  4. Step 4: Simplify right side
    253,867.52x = 49,288,090,714.15
  5. Step 5: Solve for x
    x = 49,288,090,714.15/253,867.52
  6. Step 6: Final answer
    x = 194,148.86

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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.