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Finding the Fourth Proportional to 225,550.84, 311,293.30 and 130,038.84

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Solution

The fourth proportional to 225,550.84, 311,293.30 and 130,038.84 is: 179,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,550.84 : 311,293.30 = 130,038.84 : x
  2. Step 2: Convert to fraction form
    225,550.84/311,293.30 = 130,038.84/x
  3. Step 3: Cross multiply
    225,550.84x = 311,293.30 × 130,038.84
  4. Step 4: Simplify right side
    225,550.84x = 40,480,219,631.77
  5. Step 5: Solve for x
    x = 40,480,219,631.77/225,550.84
  6. Step 6: Final answer
    x = 179,472.71

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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.