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Finding the Fourth Proportional to 143,254.92, 214,884.54 and 54,465.96

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Solution

The fourth proportional to 143,254.92, 214,884.54 and 54,465.96 is: 81,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,254.92 : 214,884.54 = 54,465.96 : x
  2. Step 2: Convert to fraction form
    143,254.92/214,884.54 = 54,465.96/x
  3. Step 3: Cross multiply
    143,254.92x = 214,884.54 × 54,465.96
  4. Step 4: Simplify right side
    143,254.92x = 11,703,892,760.26
  5. Step 5: Solve for x
    x = 11,703,892,760.26/143,254.92
  6. Step 6: Final answer
    x = 81,699.76

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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.