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Finding the Fourth Proportional to 104,644.05, 156,962.56 and 45,479.71

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Solution

The fourth proportional to 104,644.05, 156,962.56 and 45,479.71 is: 68,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.05 : 156,962.56 = 45,479.71 : x
  2. Step 2: Convert to fraction form
    104,644.05/156,962.56 = 45,479.71/x
  3. Step 3: Cross multiply
    104,644.05x = 156,962.56 × 45,479.71
  4. Step 4: Simplify right side
    104,644.05x = 7,138,611,595.96
  5. Step 5: Solve for x
    x = 7,138,611,595.96/104,644.05
  6. Step 6: Final answer
    x = 68,218.04

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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.