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Finding the Fourth Proportional to 79,283.92, 118,945.70 and 55,955.92

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Solution

The fourth proportional to 79,283.92, 118,945.70 and 55,955.92 is: 83,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.92 : 118,945.70 = 55,955.92 : x
  2. Step 2: Convert to fraction form
    79,283.92/118,945.70 = 55,955.92/x
  3. Step 3: Cross multiply
    79,283.92x = 118,945.70 × 55,955.92
  4. Step 4: Simplify right side
    79,283.92x = 6,655,716,073.54
  5. Step 5: Solve for x
    x = 6,655,716,073.54/79,283.92
  6. Step 6: Final answer
    x = 83,947.87

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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.