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Finding the Fourth Proportional to 115,414.65, 173,104.65 and 36,518.63

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Solution

The fourth proportional to 115,414.65, 173,104.65 and 36,518.63 is: 54,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,414.65 : 173,104.65 = 36,518.63 : x
  2. Step 2: Convert to fraction form
    115,414.65/173,104.65 = 36,518.63/x
  3. Step 3: Cross multiply
    115,414.65x = 173,104.65 × 36,518.63
  4. Step 4: Simplify right side
    115,414.65x = 6,321,543,799.11
  5. Step 5: Solve for x
    x = 6,321,543,799.11/115,414.65
  6. Step 6: Final answer
    x = 54,772.46

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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.