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Finding the Fourth Proportional to 133,409.81, 184,115.53 and 76,050.50

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Solution

The fourth proportional to 133,409.81, 184,115.53 and 76,050.50 is: 104,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,409.81 : 184,115.53 = 76,050.50 : x
  2. Step 2: Convert to fraction form
    133,409.81/184,115.53 = 76,050.50/x
  3. Step 3: Cross multiply
    133,409.81x = 184,115.53 × 76,050.50
  4. Step 4: Simplify right side
    133,409.81x = 14,002,078,324.40
  5. Step 5: Solve for x
    x = 14,002,078,324.40/133,409.81
  6. Step 6: Final answer
    x = 104,955.39

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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.