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Finding the Fourth Proportional to 225,617.84, 311,270.24 and 134,976.41

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Solution

The fourth proportional to 225,617.84, 311,270.24 and 134,976.41 is: 186,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,617.84 : 311,270.24 = 134,976.41 : x
  2. Step 2: Convert to fraction form
    225,617.84/311,270.24 = 134,976.41/x
  3. Step 3: Cross multiply
    225,617.84x = 311,270.24 × 134,976.41
  4. Step 4: Simplify right side
    225,617.84x = 42,014,139,535.04
  5. Step 5: Solve for x
    x = 42,014,139,535.04/225,617.84
  6. Step 6: Final answer
    x = 186,218.16

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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.