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Finding the Fourth Proportional to 143,302.16, 214,955.30 and 54,560.54

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Solution

The fourth proportional to 143,302.16, 214,955.30 and 54,560.54 is: 81,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,302.16 : 214,955.30 = 54,560.54 : x
  2. Step 2: Convert to fraction form
    143,302.16/214,955.30 = 54,560.54/x
  3. Step 3: Cross multiply
    143,302.16x = 214,955.30 × 54,560.54
  4. Step 4: Simplify right side
    143,302.16x = 11,728,077,243.86
  5. Step 5: Solve for x
    x = 11,728,077,243.86/143,302.16
  6. Step 6: Final answer
    x = 81,841.59

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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.