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Finding the Fourth Proportional to 178,957.75, 246,955.39 and 98,384.70

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Solution

The fourth proportional to 178,957.75, 246,955.39 and 98,384.70 is: 135,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,957.75 : 246,955.39 = 98,384.70 : x
  2. Step 2: Convert to fraction form
    178,957.75/246,955.39 = 98,384.70/x
  3. Step 3: Cross multiply
    178,957.75x = 246,955.39 × 98,384.70
  4. Step 4: Simplify right side
    178,957.75x = 24,296,631,958.53
  5. Step 5: Solve for x
    x = 24,296,631,958.53/178,957.75
  6. Step 6: Final answer
    x = 135,767.42

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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.