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Finding the Fourth Proportional to 79,272.42, 118,928.43 and 55,944.42

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Solution

The fourth proportional to 79,272.42, 118,928.43 and 55,944.42 is: 83,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,272.42 : 118,928.43 = 55,944.42 : x
  2. Step 2: Convert to fraction form
    79,272.42/118,928.43 = 55,944.42/x
  3. Step 3: Cross multiply
    79,272.42x = 118,928.43 × 55,944.42
  4. Step 4: Simplify right side
    79,272.42x = 6,653,382,037.86
  5. Step 5: Solve for x
    x = 6,653,382,037.86/79,272.42
  6. Step 6: Final answer
    x = 83,930.60

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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.