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Finding the Fourth Proportional to 168,059.81, 252,128.93 and 55,731.81

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Solution

The fourth proportional to 168,059.81, 252,128.93 and 55,731.81 is: 83,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,059.81 : 252,128.93 = 55,731.81 : x
  2. Step 2: Convert to fraction form
    168,059.81/252,128.93 = 55,731.81/x
  3. Step 3: Cross multiply
    168,059.81x = 252,128.93 × 55,731.81
  4. Step 4: Simplify right side
    168,059.81x = 14,051,601,622.26
  5. Step 5: Solve for x
    x = 14,051,601,622.26/168,059.81
  6. Step 6: Final answer
    x = 83,610.72

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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.