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Finding the Fourth Proportional to 119,496.70, 179,269.62 and 99,912.12

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Solution

The fourth proportional to 119,496.70, 179,269.62 and 99,912.12 is: 149,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,496.70 : 179,269.62 = 99,912.12 : x
  2. Step 2: Convert to fraction form
    119,496.70/179,269.62 = 99,912.12/x
  3. Step 3: Cross multiply
    119,496.70x = 179,269.62 × 99,912.12
  4. Step 4: Simplify right side
    119,496.70x = 17,911,207,785.79
  5. Step 5: Solve for x
    x = 17,911,207,785.79/119,496.70
  6. Step 6: Final answer
    x = 149,888.72

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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.