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Finding the Fourth Proportional to 143,399.90, 214,905.45 and 95,879.90

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Solution

The fourth proportional to 143,399.90, 214,905.45 and 95,879.90 is: 143,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,399.90 : 214,905.45 = 95,879.90 : x
  2. Step 2: Convert to fraction form
    143,399.90/214,905.45 = 95,879.90/x
  3. Step 3: Cross multiply
    143,399.90x = 214,905.45 × 95,879.90
  4. Step 4: Simplify right side
    143,399.90x = 20,605,113,055.46
  5. Step 5: Solve for x
    x = 20,605,113,055.46/143,399.90
  6. Step 6: Final answer
    x = 143,689.87

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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.