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Finding the Fourth Proportional to 225,528.44, 311,225.10 and 130,039.16

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Solution

The fourth proportional to 225,528.44, 311,225.10 and 130,039.16 is: 179,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,528.44 : 311,225.10 = 130,039.16 : x
  2. Step 2: Convert to fraction form
    225,528.44/311,225.10 = 130,039.16/x
  3. Step 3: Cross multiply
    225,528.44x = 311,225.10 × 130,039.16
  4. Step 4: Simplify right side
    225,528.44x = 40,471,450,574.92
  5. Step 5: Solve for x
    x = 40,471,450,574.92/225,528.44
  6. Step 6: Final answer
    x = 179,451.65

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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.