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Finding the Fourth Proportional to 178,753.64, 246,686.31 and 98,188.61

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Solution

The fourth proportional to 178,753.64, 246,686.31 and 98,188.61 is: 135,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,753.64 : 246,686.31 = 98,188.61 : x
  2. Step 2: Convert to fraction form
    178,753.64/246,686.31 = 98,188.61/x
  3. Step 3: Cross multiply
    178,753.64x = 246,686.31 × 98,188.61
  4. Step 4: Simplify right side
    178,753.64x = 24,221,784,651.50
  5. Step 5: Solve for x
    x = 24,221,784,651.50/178,753.64
  6. Step 6: Final answer
    x = 135,503.73

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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.