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Finding the Fourth Proportional to 149,376.80, 223,919.40 and 133,630.40

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Solution

The fourth proportional to 149,376.80, 223,919.40 and 133,630.40 is: 200,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,376.80 : 223,919.40 = 133,630.40 : x
  2. Step 2: Convert to fraction form
    149,376.80/223,919.40 = 133,630.40/x
  3. Step 3: Cross multiply
    149,376.80x = 223,919.40 × 133,630.40
  4. Step 4: Simplify right side
    149,376.80x = 29,922,438,989.76
  5. Step 5: Solve for x
    x = 29,922,438,989.76/149,376.80
  6. Step 6: Final answer
    x = 200,315.17

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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.