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Finding the Fourth Proportional to 603,842.96, 905,763.86 and 154,563.11

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Solution

The fourth proportional to 603,842.96, 905,763.86 and 154,563.11 is: 231,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,842.96 : 905,763.86 = 154,563.11 : x
  2. Step 2: Convert to fraction form
    603,842.96/905,763.86 = 154,563.11/x
  3. Step 3: Cross multiply
    603,842.96x = 905,763.86 × 154,563.11
  4. Step 4: Simplify right side
    603,842.96x = 139,997,683,331.43
  5. Step 5: Solve for x
    x = 139,997,683,331.43/603,842.96
  6. Step 6: Final answer
    x = 231,844.52

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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.