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Finding the Fourth Proportional to 108,720.55, 163,073.49 and 29,828.17

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Solution

The fourth proportional to 108,720.55, 163,073.49 and 29,828.17 is: 44,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.55 : 163,073.49 = 29,828.17 : x
  2. Step 2: Convert to fraction form
    108,720.55/163,073.49 = 29,828.17/x
  3. Step 3: Cross multiply
    108,720.55x = 163,073.49 × 29,828.17
  4. Step 4: Simplify right side
    108,720.55x = 4,864,183,782.21
  5. Step 5: Solve for x
    x = 4,864,183,782.21/108,720.55
  6. Step 6: Final answer
    x = 44,740.24

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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.