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Finding the Fourth Proportional to 353,163.70, 530,037.15 and 163,915.30

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Solution

The fourth proportional to 353,163.70, 530,037.15 and 163,915.30 is: 246,008.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,163.70 : 530,037.15 = 163,915.30 : x
  2. Step 2: Convert to fraction form
    353,163.70/530,037.15 = 163,915.30/x
  3. Step 3: Cross multiply
    353,163.70x = 530,037.15 × 163,915.30
  4. Step 4: Simplify right side
    353,163.70x = 86,881,198,453.40
  5. Step 5: Solve for x
    x = 86,881,198,453.40/353,163.70
  6. Step 6: Final answer
    x = 246,008.29

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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.