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Finding the Fourth Proportional to 407,246.05, 611,107.22 and 170,568.91

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Solution

The fourth proportional to 407,246.05, 611,107.22 and 170,568.91 is: 255,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,246.05 : 611,107.22 = 170,568.91 : x
  2. Step 2: Convert to fraction form
    407,246.05/611,107.22 = 170,568.91/x
  3. Step 3: Cross multiply
    407,246.05x = 611,107.22 × 170,568.91
  4. Step 4: Simplify right side
    407,246.05x = 104,235,892,408.53
  5. Step 5: Solve for x
    x = 104,235,892,408.53/407,246.05
  6. Step 6: Final answer
    x = 255,953.11

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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.