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Finding the Fourth Proportional to 225,453.48, 311,130.48 and 123,483.22

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Solution

The fourth proportional to 225,453.48, 311,130.48 and 123,483.22 is: 170,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,453.48 : 311,130.48 = 123,483.22 : x
  2. Step 2: Convert to fraction form
    225,453.48/311,130.48 = 123,483.22/x
  3. Step 3: Cross multiply
    225,453.48x = 311,130.48 × 123,483.22
  4. Step 4: Simplify right side
    225,453.48x = 38,419,393,195.78
  5. Step 5: Solve for x
    x = 38,419,393,195.78/225,453.48
  6. Step 6: Final answer
    x = 170,409.41

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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.