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Finding the Fourth Proportional to 489,013.55, 733,441.62 and 133,944.53

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Solution

The fourth proportional to 489,013.55, 733,441.62 and 133,944.53 is: 200,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,013.55 : 733,441.62 = 133,944.53 : x
  2. Step 2: Convert to fraction form
    489,013.55/733,441.62 = 133,944.53/x
  3. Step 3: Cross multiply
    489,013.55x = 733,441.62 × 133,944.53
  4. Step 4: Simplify right side
    489,013.55x = 98,240,493,073.34
  5. Step 5: Solve for x
    x = 98,240,493,073.34/489,013.55
  6. Step 6: Final answer
    x = 200,895.24

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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.