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Finding the Fourth Proportional to 184,430.90, 276,581.55 and 84,638.90

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Solution

The fourth proportional to 184,430.90, 276,581.55 and 84,638.90 is: 126,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,430.90 : 276,581.55 = 84,638.90 : x
  2. Step 2: Convert to fraction form
    184,430.90/276,581.55 = 84,638.90/x
  3. Step 3: Cross multiply
    184,430.90x = 276,581.55 × 84,638.90
  4. Step 4: Simplify right side
    184,430.90x = 23,409,558,152.30
  5. Step 5: Solve for x
    x = 23,409,558,152.30/184,430.90
  6. Step 6: Final answer
    x = 126,928.61

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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.