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Finding the Fourth Proportional to 84,903.88, 117,050.16 and 67,734.49

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Solution

The fourth proportional to 84,903.88, 117,050.16 and 67,734.49 is: 93,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,903.88 : 117,050.16 = 67,734.49 : x
  2. Step 2: Convert to fraction form
    84,903.88/117,050.16 = 67,734.49/x
  3. Step 3: Cross multiply
    84,903.88x = 117,050.16 × 67,734.49
  4. Step 4: Simplify right side
    84,903.88x = 7,928,332,892.02
  5. Step 5: Solve for x
    x = 7,928,332,892.02/84,903.88
  6. Step 6: Final answer
    x = 93,380.10

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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.