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Finding the Fourth Proportional to 236,769.70, 326,720.72 and 133,420.72

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Solution

The fourth proportional to 236,769.70, 326,720.72 and 133,420.72 is: 184,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,769.70 : 326,720.72 = 133,420.72 : x
  2. Step 2: Convert to fraction form
    236,769.70/326,720.72 = 133,420.72/x
  3. Step 3: Cross multiply
    236,769.70x = 326,720.72 × 133,420.72
  4. Step 4: Simplify right side
    236,769.70x = 43,591,313,701.32
  5. Step 5: Solve for x
    x = 43,591,313,701.32/236,769.70
  6. Step 6: Final answer
    x = 184,108.50

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1.5x scale

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.