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Finding the Fourth Proportional to 118,146.95, 177,326.95 and 80,104.20

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Solution

The fourth proportional to 118,146.95, 177,326.95 and 80,104.20 is: 120,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,146.95 : 177,326.95 = 80,104.20 : x
  2. Step 2: Convert to fraction form
    118,146.95/177,326.95 = 80,104.20/x
  3. Step 3: Cross multiply
    118,146.95x = 177,326.95 × 80,104.20
  4. Step 4: Simplify right side
    118,146.95x = 14,204,633,468.19
  5. Step 5: Solve for x
    x = 14,204,633,468.19/118,146.95
  6. Step 6: Final answer
    x = 120,228.52

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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.