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Finding the Fourth Proportional to 168,057.81, 252,125.93 and 55,729.81

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Solution

The fourth proportional to 168,057.81, 252,125.93 and 55,729.81 is: 83,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.81 : 252,125.93 = 55,729.81 : x
  2. Step 2: Convert to fraction form
    168,057.81/252,125.93 = 55,729.81/x
  3. Step 3: Cross multiply
    168,057.81x = 252,125.93 × 55,729.81
  4. Step 4: Simplify right side
    168,057.81x = 14,050,928,914.34
  5. Step 5: Solve for x
    x = 14,050,928,914.34/168,057.81
  6. Step 6: Final answer
    x = 83,607.71

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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.