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Finding the Fourth Proportional to 133,563.48, 184,317.90 and 72,310.31

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Solution

The fourth proportional to 133,563.48, 184,317.90 and 72,310.31 is: 99,788.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,563.48 : 184,317.90 = 72,310.31 : x
  2. Step 2: Convert to fraction form
    133,563.48/184,317.90 = 72,310.31/x
  3. Step 3: Cross multiply
    133,563.48x = 184,317.90 × 72,310.31
  4. Step 4: Simplify right side
    133,563.48x = 13,328,083,565.96
  5. Step 5: Solve for x
    x = 13,328,083,565.96/133,563.48
  6. Step 6: Final answer
    x = 99,788.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.