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Finding the Fourth Proportional to 113,169.91, 169,754.20 and 28,929.95

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Solution

The fourth proportional to 113,169.91, 169,754.20 and 28,929.95 is: 43,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,169.91 : 169,754.20 = 28,929.95 : x
  2. Step 2: Convert to fraction form
    113,169.91/169,754.20 = 28,929.95/x
  3. Step 3: Cross multiply
    113,169.91x = 169,754.20 × 28,929.95
  4. Step 4: Simplify right side
    113,169.91x = 4,910,980,870.35
  5. Step 5: Solve for x
    x = 4,910,980,870.35/113,169.91
  6. Step 6: Final answer
    x = 43,394.76

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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.