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Finding the Fourth Proportional to 402,460.14, 603,777.33 and 121,998.54

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Solution

The fourth proportional to 402,460.14, 603,777.33 and 121,998.54 is: 183,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,460.14 : 603,777.33 = 121,998.54 : x
  2. Step 2: Convert to fraction form
    402,460.14/603,777.33 = 121,998.54/x
  3. Step 3: Cross multiply
    402,460.14x = 603,777.33 × 121,998.54
  4. Step 4: Simplify right side
    402,460.14x = 73,659,952,745.10
  5. Step 5: Solve for x
    x = 73,659,952,745.10/402,460.14
  6. Step 6: Final answer
    x = 183,024.22

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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.