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Finding the Fourth Proportional to 178,912.15, 246,899.31 and 98,347.93

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Solution

The fourth proportional to 178,912.15, 246,899.31 and 98,347.93 is: 135,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,912.15 : 246,899.31 = 98,347.93 : x
  2. Step 2: Convert to fraction form
    178,912.15/246,899.31 = 98,347.93/x
  3. Step 3: Cross multiply
    178,912.15x = 246,899.31 × 98,347.93
  4. Step 4: Simplify right side
    178,912.15x = 24,282,035,765.28
  5. Step 5: Solve for x
    x = 24,282,035,765.28/178,912.15
  6. Step 6: Final answer
    x = 135,720.44

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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.