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Finding the Fourth Proportional to 140,963.70, 211,442.79 and 34,348.26

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Solution

The fourth proportional to 140,963.70, 211,442.79 and 34,348.26 is: 51,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963.70 : 211,442.79 = 34,348.26 : x
  2. Step 2: Convert to fraction form
    140,963.70/211,442.79 = 34,348.26/x
  3. Step 3: Cross multiply
    140,963.70x = 211,442.79 × 34,348.26
  4. Step 4: Simplify right side
    140,963.70x = 7,262,691,926.05
  5. Step 5: Solve for x
    x = 7,262,691,926.05/140,963.70
  6. Step 6: Final answer
    x = 51,521.72

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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.