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Finding the Fourth Proportional to 153,903.11, 230,867.83 and 54,054.61

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Solution

The fourth proportional to 153,903.11, 230,867.83 and 54,054.61 is: 81,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,903.11 : 230,867.83 = 54,054.61 : x
  2. Step 2: Convert to fraction form
    153,903.11/230,867.83 = 54,054.61/x
  3. Step 3: Cross multiply
    153,903.11x = 230,867.83 × 54,054.61
  4. Step 4: Simplify right side
    153,903.11x = 12,479,470,241.92
  5. Step 5: Solve for x
    x = 12,479,470,241.92/153,903.11
  6. Step 6: Final answer
    x = 81,086.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.