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Finding the Fourth Proportional to 140,468.70, 210,604.48 and 51,710.82

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Solution

The fourth proportional to 140,468.70, 210,604.48 and 51,710.82 is: 77,529.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,468.70 : 210,604.48 = 51,710.82 : x
  2. Step 2: Convert to fraction form
    140,468.70/210,604.48 = 51,710.82/x
  3. Step 3: Cross multiply
    140,468.70x = 210,604.48 × 51,710.82
  4. Step 4: Simplify right side
    140,468.70x = 10,890,530,356.47
  5. Step 5: Solve for x
    x = 10,890,530,356.47/140,468.70
  6. Step 6: Final answer
    x = 77,529.94

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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.