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Finding the Fourth Proportional to 225,152.87, 310,732.61 and 134,507.79

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Solution

The fourth proportional to 225,152.87, 310,732.61 and 134,507.79 is: 185,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,152.87 : 310,732.61 = 134,507.79 : x
  2. Step 2: Convert to fraction form
    225,152.87/310,732.61 = 134,507.79/x
  3. Step 3: Cross multiply
    225,152.87x = 310,732.61 × 134,507.79
  4. Step 4: Simplify right side
    225,152.87x = 41,795,955,979.49
  5. Step 5: Solve for x
    x = 41,795,955,979.49/225,152.87
  6. Step 6: Final answer
    x = 185,633.68

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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.