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Finding the Fourth Proportional to 146,039.40, 218,573.10 and 105,944.40

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Solution

The fourth proportional to 146,039.40, 218,573.10 and 105,944.40 is: 158,564.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,039.40 : 218,573.10 = 105,944.40 : x
  2. Step 2: Convert to fraction form
    146,039.40/218,573.10 = 105,944.40/x
  3. Step 3: Cross multiply
    146,039.40x = 218,573.10 × 105,944.40
  4. Step 4: Simplify right side
    146,039.40x = 23,156,595,935.64
  5. Step 5: Solve for x
    x = 23,156,595,935.64/146,039.40
  6. Step 6: Final answer
    x = 158,564.03

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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.