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Finding the Fourth Proportional to 195,314.29, 292,994.88 and 68,928.45

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Solution

The fourth proportional to 195,314.29, 292,994.88 and 68,928.45 is: 103,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,314.29 : 292,994.88 = 68,928.45 : x
  2. Step 2: Convert to fraction form
    195,314.29/292,994.88 = 68,928.45/x
  3. Step 3: Cross multiply
    195,314.29x = 292,994.88 × 68,928.45
  4. Step 4: Simplify right side
    195,314.29x = 20,195,682,936.34
  5. Step 5: Solve for x
    x = 20,195,682,936.34/195,314.29
  6. Step 6: Final answer
    x = 103,400.95

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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.