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Finding the Fourth Proportional to 112,674.65, 169,017.44 and 92,917.13

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Solution

The fourth proportional to 112,674.65, 169,017.44 and 92,917.13 is: 139,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,674.65 : 169,017.44 = 92,917.13 : x
  2. Step 2: Convert to fraction form
    112,674.65/169,017.44 = 92,917.13/x
  3. Step 3: Cross multiply
    112,674.65x = 169,017.44 × 92,917.13
  4. Step 4: Simplify right side
    112,674.65x = 15,704,614,135.07
  5. Step 5: Solve for x
    x = 15,704,614,135.07/112,674.65
  6. Step 6: Final answer
    x = 139,380.20

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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.