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Finding the Fourth Proportional to 213,777.36, 320,720.67 and 175,887.54

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Solution

The fourth proportional to 213,777.36, 320,720.67 and 175,887.54 is: 263,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,777.36 : 320,720.67 = 175,887.54 : x
  2. Step 2: Convert to fraction form
    213,777.36/320,720.67 = 175,887.54/x
  3. Step 3: Cross multiply
    213,777.36x = 320,720.67 × 175,887.54
  4. Step 4: Simplify right side
    213,777.36x = 56,410,769,673.45
  5. Step 5: Solve for x
    x = 56,410,769,673.45/213,777.36
  6. Step 6: Final answer
    x = 263,876.26

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1.5x scale

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.