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Finding the Fourth Proportional to 194,194.92, 291,405.58 and 81,868.28

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Solution

The fourth proportional to 194,194.92, 291,405.58 and 81,868.28 is: 122,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,194.92 : 291,405.58 = 81,868.28 : x
  2. Step 2: Convert to fraction form
    194,194.92/291,405.58 = 81,868.28/x
  3. Step 3: Cross multiply
    194,194.92x = 291,405.58 × 81,868.28
  4. Step 4: Simplify right side
    194,194.92x = 23,856,873,617.00
  5. Step 5: Solve for x
    x = 23,856,873,617.00/194,194.92
  6. Step 6: Final answer
    x = 122,850.14

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1.5x scale

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.