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Finding the Fourth Proportional to 108,843.99, 163,224.05 and 42,275.36

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Solution

The fourth proportional to 108,843.99, 163,224.05 and 42,275.36 is: 63,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,843.99 : 163,224.05 = 42,275.36 : x
  2. Step 2: Convert to fraction form
    108,843.99/163,224.05 = 42,275.36/x
  3. Step 3: Cross multiply
    108,843.99x = 163,224.05 × 42,275.36
  4. Step 4: Simplify right side
    108,843.99x = 6,900,354,446.91
  5. Step 5: Solve for x
    x = 6,900,354,446.91/108,843.99
  6. Step 6: Final answer
    x = 63,396.74

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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.