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Finding the Fourth Proportional to 119,251.71, 178,883.79 and 30,505.98

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Solution

The fourth proportional to 119,251.71, 178,883.79 and 30,505.98 is: 45,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,251.71 : 178,883.79 = 30,505.98 : x
  2. Step 2: Convert to fraction form
    119,251.71/178,883.79 = 30,505.98/x
  3. Step 3: Cross multiply
    119,251.71x = 178,883.79 × 30,505.98
  4. Step 4: Simplify right side
    119,251.71x = 5,457,026,048.08
  5. Step 5: Solve for x
    x = 5,457,026,048.08/119,251.71
  6. Step 6: Final answer
    x = 45,760.57

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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.