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Finding the Fourth Proportional to 178,998.84, 247,022.46 and 98,430.84

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Solution

The fourth proportional to 178,998.84, 247,022.46 and 98,430.84 is: 135,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,998.84 : 247,022.46 = 98,430.84 : x
  2. Step 2: Convert to fraction form
    178,998.84/247,022.46 = 98,430.84/x
  3. Step 3: Cross multiply
    178,998.84x = 247,022.46 × 98,430.84
  4. Step 4: Simplify right side
    178,998.84x = 24,314,628,236.67
  5. Step 5: Solve for x
    x = 24,314,628,236.67/178,998.84
  6. Step 6: Final answer
    x = 135,836.79

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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.