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Finding the Fourth Proportional to 133,337.40, 184,004.78 and 73,721.40

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Solution

The fourth proportional to 133,337.40, 184,004.78 and 73,721.40 is: 101,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,337.40 : 184,004.78 = 73,721.40 : x
  2. Step 2: Convert to fraction form
    133,337.40/184,004.78 = 73,721.40/x
  3. Step 3: Cross multiply
    133,337.40x = 184,004.78 × 73,721.40
  4. Step 4: Simplify right side
    133,337.40x = 13,565,089,988.29
  5. Step 5: Solve for x
    x = 13,565,089,988.29/133,337.40
  6. Step 6: Final answer
    x = 101,735.07

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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.