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Finding the Fourth Proportional to 118,399.95, 177,475.88 and 55,167.94

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Solution

The fourth proportional to 118,399.95, 177,475.88 and 55,167.94 is: 82,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,399.95 : 177,475.88 = 55,167.94 : x
  2. Step 2: Convert to fraction form
    118,399.95/177,475.88 = 55,167.94/x
  3. Step 3: Cross multiply
    118,399.95x = 177,475.88 × 55,167.94
  4. Step 4: Simplify right side
    118,399.95x = 9,790,978,699.29
  5. Step 5: Solve for x
    x = 9,790,978,699.29/118,399.95
  6. Step 6: Final answer
    x = 82,694.11

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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.