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Finding the Fourth Proportional to 194,773.12, 268,830.24 and 126,671.68

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Solution

The fourth proportional to 194,773.12, 268,830.24 and 126,671.68 is: 174,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,773.12 : 268,830.24 = 126,671.68 : x
  2. Step 2: Convert to fraction form
    194,773.12/268,830.24 = 126,671.68/x
  3. Step 3: Cross multiply
    194,773.12x = 268,830.24 × 126,671.68
  4. Step 4: Simplify right side
    194,773.12x = 34,053,178,135.60
  5. Step 5: Solve for x
    x = 34,053,178,135.60/194,773.12
  6. Step 6: Final answer
    x = 174,835.10

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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.