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Finding the Fourth Proportional to 178,671.11, 246,566.61 and 98,103.86

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Solution

The fourth proportional to 178,671.11, 246,566.61 and 98,103.86 is: 135,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,671.11 : 246,566.61 = 98,103.86 : x
  2. Step 2: Convert to fraction form
    178,671.11/246,566.61 = 98,103.86/x
  3. Step 3: Cross multiply
    178,671.11x = 246,566.61 × 98,103.86
  4. Step 4: Simplify right side
    178,671.11x = 24,189,134,955.28
  5. Step 5: Solve for x
    x = 24,189,134,955.28/178,671.11
  6. Step 6: Final answer
    x = 135,383.59

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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.