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Finding the Fourth Proportional to 108,071.60, 162,115.60 and 29,184.70

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Solution

The fourth proportional to 108,071.60, 162,115.60 and 29,184.70 is: 43,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,071.60 : 162,115.60 = 29,184.70 : x
  2. Step 2: Convert to fraction form
    108,071.60/162,115.60 = 29,184.70/x
  3. Step 3: Cross multiply
    108,071.60x = 162,115.60 × 29,184.70
  4. Step 4: Simplify right side
    108,071.60x = 4,731,295,151.32
  5. Step 5: Solve for x
    x = 4,731,295,151.32/108,071.60
  6. Step 6: Final answer
    x = 43,779.26

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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.