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Finding the Fourth Proportional to 118,770.94, 178,171.08 and 38,807.02

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Solution

The fourth proportional to 118,770.94, 178,171.08 and 38,807.02 is: 58,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,770.94 : 178,171.08 = 38,807.02 : x
  2. Step 2: Convert to fraction form
    118,770.94/178,171.08 = 38,807.02/x
  3. Step 3: Cross multiply
    118,770.94x = 178,171.08 × 38,807.02
  4. Step 4: Simplify right side
    118,770.94x = 6,914,288,664.98
  5. Step 5: Solve for x
    x = 6,914,288,664.98/118,770.94
  6. Step 6: Final answer
    x = 58,215.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.