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Finding the Fourth Proportional to 144,992.52, 217,491.24 and 39,810.78

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Solution

The fourth proportional to 144,992.52, 217,491.24 and 39,810.78 is: 59,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,992.52 : 217,491.24 = 39,810.78 : x
  2. Step 2: Convert to fraction form
    144,992.52/217,491.24 = 39,810.78/x
  3. Step 3: Cross multiply
    144,992.52x = 217,491.24 × 39,810.78
  4. Step 4: Simplify right side
    144,992.52x = 8,658,495,907.57
  5. Step 5: Solve for x
    x = 8,658,495,907.57/144,992.52
  6. Step 6: Final answer
    x = 59,716.85

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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.