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Finding the Fourth Proportional to 108,069.60, 162,112.60 and 29,182.70

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Solution

The fourth proportional to 108,069.60, 162,112.60 and 29,182.70 is: 43,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,069.60 : 162,112.60 = 29,182.70 : x
  2. Step 2: Convert to fraction form
    108,069.60/162,112.60 = 29,182.70/x
  3. Step 3: Cross multiply
    108,069.60x = 162,112.60 × 29,182.70
  4. Step 4: Simplify right side
    108,069.60x = 4,730,883,372.02
  5. Step 5: Solve for x
    x = 4,730,883,372.02/108,069.60
  6. Step 6: Final answer
    x = 43,776.26

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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.