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Finding the Fourth Proportional to 144,721.77, 217,103.67 and 44,890

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Solution

The fourth proportional to 144,721.77, 217,103.67 and 44,890 is: 67,341.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,721.77 : 217,103.67 = 44,890 : x
  2. Step 2: Convert to fraction form
    144,721.77/217,103.67 = 44,890/x
  3. Step 3: Cross multiply
    144,721.77x = 217,103.67 × 44,890
  4. Step 4: Simplify right side
    144,721.77x = 9,745,783,746.30
  5. Step 5: Solve for x
    x = 9,745,783,746.30/144,721.77
  6. Step 6: Final answer
    x = 67,341.52

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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.