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Finding the Fourth Proportional to 118,548.90, 177,564.15 and 92,045.70

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Solution

The fourth proportional to 118,548.90, 177,564.15 and 92,045.70 is: 137,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,548.90 : 177,564.15 = 92,045.70 : x
  2. Step 2: Convert to fraction form
    118,548.90/177,564.15 = 92,045.70/x
  3. Step 3: Cross multiply
    118,548.90x = 177,564.15 × 92,045.70
  4. Step 4: Simplify right side
    118,548.90x = 16,344,016,481.66
  5. Step 5: Solve for x
    x = 16,344,016,481.66/118,548.90
  6. Step 6: Final answer
    x = 137,867.30

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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.