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Finding the Fourth Proportional to 213,174.84, 319,706.57 and 63,374.79

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Solution

The fourth proportional to 213,174.84, 319,706.57 and 63,374.79 is: 95,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,174.84 : 319,706.57 = 63,374.79 : x
  2. Step 2: Convert to fraction form
    213,174.84/319,706.57 = 63,374.79/x
  3. Step 3: Cross multiply
    213,174.84x = 319,706.57 × 63,374.79
  4. Step 4: Simplify right side
    213,174.84x = 20,261,336,735.37
  5. Step 5: Solve for x
    x = 20,261,336,735.37/213,174.84
  6. Step 6: Final answer
    x = 95,045.63

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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.