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Finding the Fourth Proportional to 84,283.94, 116,203.29 and 60,112.46

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Solution

The fourth proportional to 84,283.94, 116,203.29 and 60,112.46 is: 82,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,283.94 : 116,203.29 = 60,112.46 : x
  2. Step 2: Convert to fraction form
    84,283.94/116,203.29 = 60,112.46/x
  3. Step 3: Cross multiply
    84,283.94x = 116,203.29 × 60,112.46
  4. Step 4: Simplify right side
    84,283.94x = 6,985,265,621.99
  5. Step 5: Solve for x
    x = 6,985,265,621.99/84,283.94
  6. Step 6: Final answer
    x = 82,877.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.