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Finding the Fourth Proportional to 79,283.42, 118,944.96 and 55,955.42

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Solution

The fourth proportional to 79,283.42, 118,944.96 and 55,955.42 is: 83,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.42 : 118,944.96 = 55,955.42 : x
  2. Step 2: Convert to fraction form
    79,283.42/118,944.96 = 55,955.42/x
  3. Step 3: Cross multiply
    79,283.42x = 118,944.96 × 55,955.42
  4. Step 4: Simplify right side
    79,283.42x = 6,655,615,193.68
  5. Step 5: Solve for x
    x = 6,655,615,193.68/79,283.42
  6. Step 6: Final answer
    x = 83,947.13

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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.