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Finding the Fourth Proportional to 111,352.80, 167,029.20 and 92,653.95

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Solution

The fourth proportional to 111,352.80, 167,029.20 and 92,653.95 is: 138,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,352.80 : 167,029.20 = 92,653.95 : x
  2. Step 2: Convert to fraction form
    111,352.80/167,029.20 = 92,653.95/x
  3. Step 3: Cross multiply
    111,352.80x = 167,029.20 × 92,653.95
  4. Step 4: Simplify right side
    111,352.80x = 15,475,915,145.34
  5. Step 5: Solve for x
    x = 15,475,915,145.34/111,352.80
  6. Step 6: Final answer
    x = 138,980.93

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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.