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Finding the Fourth Proportional to 55,951.99, 83,928.86 and 31,149.68

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Solution

The fourth proportional to 55,951.99, 83,928.86 and 31,149.68 is: 46,725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,951.99 : 83,928.86 = 31,149.68 : x
  2. Step 2: Convert to fraction form
    55,951.99/83,928.86 = 31,149.68/x
  3. Step 3: Cross multiply
    55,951.99x = 83,928.86 × 31,149.68
  4. Step 4: Simplify right side
    55,951.99x = 2,614,357,419.46
  5. Step 5: Solve for x
    x = 2,614,357,419.46/55,951.99
  6. Step 6: Final answer
    x = 46,725.01

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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.