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Finding the Fourth Proportional to 178,340.88, 246,069.98 and 120,988.02

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Solution

The fourth proportional to 178,340.88, 246,069.98 and 120,988.02 is: 166,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,340.88 : 246,069.98 = 120,988.02 : x
  2. Step 2: Convert to fraction form
    178,340.88/246,069.98 = 120,988.02/x
  3. Step 3: Cross multiply
    178,340.88x = 246,069.98 × 120,988.02
  4. Step 4: Simplify right side
    178,340.88x = 29,771,519,661.64
  5. Step 5: Solve for x
    x = 29,771,519,661.64/178,340.88
  6. Step 6: Final answer
    x = 166,936.04

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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.