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Finding the Fourth Proportional to 143,951.90, 215,944.05 and 44,111.30

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Solution

The fourth proportional to 143,951.90, 215,944.05 and 44,111.30 is: 66,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,951.90 : 215,944.05 = 44,111.30 : x
  2. Step 2: Convert to fraction form
    143,951.90/215,944.05 = 44,111.30/x
  3. Step 3: Cross multiply
    143,951.90x = 215,944.05 × 44,111.30
  4. Step 4: Simplify right side
    143,951.90x = 9,525,572,772.77
  5. Step 5: Solve for x
    x = 9,525,572,772.77/143,951.90
  6. Step 6: Final answer
    x = 66,171.91

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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.