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Finding the Fourth Proportional to 435,609.77, 653,447.45 and 120,063.94

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Solution

The fourth proportional to 435,609.77, 653,447.45 and 120,063.94 is: 180,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,609.77 : 653,447.45 = 120,063.94 : x
  2. Step 2: Convert to fraction form
    435,609.77/653,447.45 = 120,063.94/x
  3. Step 3: Cross multiply
    435,609.77x = 653,447.45 × 120,063.94
  4. Step 4: Simplify right side
    435,609.77x = 78,455,474,096.49
  5. Step 5: Solve for x
    x = 78,455,474,096.49/435,609.77
  6. Step 6: Final answer
    x = 180,104.95

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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.