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Finding the Fourth Proportional to 225,503.64, 311,119.20 and 130,008.24

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Solution

The fourth proportional to 225,503.64, 311,119.20 and 130,008.24 is: 179,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,503.64 : 311,119.20 = 130,008.24 : x
  2. Step 2: Convert to fraction form
    225,503.64/311,119.20 = 130,008.24/x
  3. Step 3: Cross multiply
    225,503.64x = 311,119.20 × 130,008.24
  4. Step 4: Simplify right side
    225,503.64x = 40,448,059,622.21
  5. Step 5: Solve for x
    x = 40,448,059,622.21/225,503.64
  6. Step 6: Final answer
    x = 179,367.66

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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.