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Finding the Fourth Proportional to 405,604.48, 608,360.24 and 106,113.96

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Solution

The fourth proportional to 405,604.48, 608,360.24 and 106,113.96 is: 159,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,604.48 : 608,360.24 = 106,113.96 : x
  2. Step 2: Convert to fraction form
    405,604.48/608,360.24 = 106,113.96/x
  3. Step 3: Cross multiply
    405,604.48x = 608,360.24 × 106,113.96
  4. Step 4: Simplify right side
    405,604.48x = 64,555,514,172.95
  5. Step 5: Solve for x
    x = 64,555,514,172.95/405,604.48
  6. Step 6: Final answer
    x = 159,158.78

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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.