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Finding the Fourth Proportional to 108,012.44, 162,018.63 and 29,126.64

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Solution

The fourth proportional to 108,012.44, 162,018.63 and 29,126.64 is: 43,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,012.44 : 162,018.63 = 29,126.64 : x
  2. Step 2: Convert to fraction form
    108,012.44/162,018.63 = 29,126.64/x
  3. Step 3: Cross multiply
    108,012.44x = 162,018.63 × 29,126.64
  4. Step 4: Simplify right side
    108,012.44x = 4,719,058,005.52
  5. Step 5: Solve for x
    x = 4,719,058,005.52/108,012.44
  6. Step 6: Final answer
    x = 43,689.95

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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.