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Finding the Fourth Proportional to 225,431.44, 311,041.98 and 133,504.30

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Solution

The fourth proportional to 225,431.44, 311,041.98 and 133,504.30 is: 184,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,431.44 : 311,041.98 = 133,504.30 : x
  2. Step 2: Convert to fraction form
    225,431.44/311,041.98 = 133,504.30/x
  3. Step 3: Cross multiply
    225,431.44x = 311,041.98 × 133,504.30
  4. Step 4: Simplify right side
    225,431.44x = 41,525,441,810.51
  5. Step 5: Solve for x
    x = 41,525,441,810.51/225,431.44
  6. Step 6: Final answer
    x = 184,204.31

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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.