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Finding the Fourth Proportional to 144,394.38, 216,566.73 and 39,221.82

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Solution

The fourth proportional to 144,394.38, 216,566.73 and 39,221.82 is: 58,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,394.38 : 216,566.73 = 39,221.82 : x
  2. Step 2: Convert to fraction form
    144,394.38/216,566.73 = 39,221.82/x
  3. Step 3: Cross multiply
    144,394.38x = 216,566.73 × 39,221.82
  4. Step 4: Simplify right side
    144,394.38x = 8,494,141,302.05
  5. Step 5: Solve for x
    x = 8,494,141,302.05/144,394.38
  6. Step 6: Final answer
    x = 58,825.98

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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.