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Finding the Fourth Proportional to 225,679.04, 311,425.04 and 130,180.08

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Solution

The fourth proportional to 225,679.04, 311,425.04 and 130,180.08 is: 179,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,679.04 : 311,425.04 = 130,180.08 : x
  2. Step 2: Convert to fraction form
    225,679.04/311,425.04 = 130,180.08/x
  3. Step 3: Cross multiply
    225,679.04x = 311,425.04 × 130,180.08
  4. Step 4: Simplify right side
    225,679.04x = 40,541,336,621.20
  5. Step 5: Solve for x
    x = 40,541,336,621.20/225,679.04
  6. Step 6: Final answer
    x = 179,641.57

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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.