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Finding the Fourth Proportional to 225,563.76, 311,277.80 and 123,595.80

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Solution

The fourth proportional to 225,563.76, 311,277.80 and 123,595.80 is: 170,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,563.76 : 311,277.80 = 123,595.80 : x
  2. Step 2: Convert to fraction form
    225,563.76/311,277.80 = 123,595.80/x
  3. Step 3: Cross multiply
    225,563.76x = 311,277.80 × 123,595.80
  4. Step 4: Simplify right side
    225,563.76x = 38,472,628,713.24
  5. Step 5: Solve for x
    x = 38,472,628,713.24/225,563.76
  6. Step 6: Final answer
    x = 170,562.10

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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.