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Finding the Fourth Proportional to 194,267.60, 268,110.60 and 122,643.92

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Solution

The fourth proportional to 194,267.60, 268,110.60 and 122,643.92 is: 169,262.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,267.60 : 268,110.60 = 122,643.92 : x
  2. Step 2: Convert to fraction form
    194,267.60/268,110.60 = 122,643.92/x
  3. Step 3: Cross multiply
    194,267.60x = 268,110.60 × 122,643.92
  4. Step 4: Simplify right side
    194,267.60x = 32,882,134,977.55
  5. Step 5: Solve for x
    x = 32,882,134,977.55/194,267.60
  6. Step 6: Final answer
    x = 169,262.06

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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.