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Finding the Fourth Proportional to 169,195, 253,750.92 and 74,448.96

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Solution

The fourth proportional to 169,195, 253,750.92 and 74,448.96 is: 111,655.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,195 : 253,750.92 = 74,448.96 : x
  2. Step 2: Convert to fraction form
    169,195/253,750.92 = 74,448.96/x
  3. Step 3: Cross multiply
    169,195x = 253,750.92 × 74,448.96
  4. Step 4: Simplify right side
    169,195x = 18,891,492,093.04
  5. Step 5: Solve for x
    x = 18,891,492,093.04/169,195
  6. Step 6: Final answer
    x = 111,655.14

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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.