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Finding the Fourth Proportional to 104,130.60, 156,179.70 and 29,243.40

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Solution

The fourth proportional to 104,130.60, 156,179.70 and 29,243.40 is: 43,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,130.60 : 156,179.70 = 29,243.40 : x
  2. Step 2: Convert to fraction form
    104,130.60/156,179.70 = 29,243.40/x
  3. Step 3: Cross multiply
    104,130.60x = 156,179.70 × 29,243.40
  4. Step 4: Simplify right side
    104,130.60x = 4,567,225,438.98
  5. Step 5: Solve for x
    x = 4,567,225,438.98/104,130.60
  6. Step 6: Final answer
    x = 43,860.55

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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.