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Finding the Fourth Proportional to 289,524.75, 434,180.34 and 99,936.69

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Solution

The fourth proportional to 289,524.75, 434,180.34 and 99,936.69 is: 149,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,524.75 : 434,180.34 = 99,936.69 : x
  2. Step 2: Convert to fraction form
    289,524.75/434,180.34 = 99,936.69/x
  3. Step 3: Cross multiply
    289,524.75x = 434,180.34 × 99,936.69
  4. Step 4: Simplify right side
    289,524.75x = 43,390,546,042.67
  5. Step 5: Solve for x
    x = 43,390,546,042.67/289,524.75
  6. Step 6: Final answer
    x = 149,868.18

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1.5x scale

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.