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Finding the Fourth Proportional to 603,742.58, 905,644.85 and 154,467.32

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Solution

The fourth proportional to 603,742.58, 905,644.85 and 154,467.32 is: 231,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,742.58 : 905,644.85 = 154,467.32 : x
  2. Step 2: Convert to fraction form
    603,742.58/905,644.85 = 154,467.32/x
  3. Step 3: Cross multiply
    603,742.58x = 905,644.85 × 154,467.32
  4. Step 4: Simplify right side
    603,742.58x = 139,892,527,550.74
  5. Step 5: Solve for x
    x = 139,892,527,550.74/603,742.58
  6. Step 6: Final answer
    x = 231,708.90

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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.