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Finding the Fourth Proportional to 119,767.40, 179,715.90 and 49,653.80

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Solution

The fourth proportional to 119,767.40, 179,715.90 and 49,653.80 is: 74,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,767.40 : 179,715.90 = 49,653.80 : x
  2. Step 2: Convert to fraction form
    119,767.40/179,715.90 = 49,653.80/x
  3. Step 3: Cross multiply
    119,767.40x = 179,715.90 × 49,653.80
  4. Step 4: Simplify right side
    119,767.40x = 8,923,577,355.42
  5. Step 5: Solve for x
    x = 8,923,577,355.42/119,767.40
  6. Step 6: Final answer
    x = 74,507.57

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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.