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Finding the Fourth Proportional to 104,080.70, 156,130.85 and 29,200.56

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Solution

The fourth proportional to 104,080.70, 156,130.85 and 29,200.56 is: 43,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,080.70 : 156,130.85 = 29,200.56 : x
  2. Step 2: Convert to fraction form
    104,080.70/156,130.85 = 29,200.56/x
  3. Step 3: Cross multiply
    104,080.70x = 156,130.85 × 29,200.56
  4. Step 4: Simplify right side
    104,080.70x = 4,559,107,740.79
  5. Step 5: Solve for x
    x = 4,559,107,740.79/104,080.70
  6. Step 6: Final answer
    x = 43,803.58

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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.