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Finding the Fourth Proportional to 207,673.27, 311,641.12 and 119,099.77

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Solution

The fourth proportional to 207,673.27, 311,641.12 and 119,099.77 is: 178,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,673.27 : 311,641.12 = 119,099.77 : x
  2. Step 2: Convert to fraction form
    207,673.27/311,641.12 = 119,099.77/x
  3. Step 3: Cross multiply
    207,673.27x = 311,641.12 × 119,099.77
  4. Step 4: Simplify right side
    207,673.27x = 37,116,385,084.31
  5. Step 5: Solve for x
    x = 37,116,385,084.31/207,673.27
  6. Step 6: Final answer
    x = 178,724.91

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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.