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Finding the Fourth Proportional to 104,633.90, 156,938.70 and 29,765.60

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Solution

The fourth proportional to 104,633.90, 156,938.70 and 29,765.60 is: 44,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,633.90 : 156,938.70 = 29,765.60 : x
  2. Step 2: Convert to fraction form
    104,633.90/156,938.70 = 29,765.60/x
  3. Step 3: Cross multiply
    104,633.90x = 156,938.70 × 29,765.60
  4. Step 4: Simplify right side
    104,633.90x = 4,671,374,568.72
  5. Step 5: Solve for x
    x = 4,671,374,568.72/104,633.90
  6. Step 6: Final answer
    x = 44,644.94

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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.