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Finding the Fourth Proportional to 108,833.54, 163,219.29 and 42,259.43

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Solution

The fourth proportional to 108,833.54, 163,219.29 and 42,259.43 is: 63,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,833.54 : 163,219.29 = 42,259.43 : x
  2. Step 2: Convert to fraction form
    108,833.54/163,219.29 = 42,259.43/x
  3. Step 3: Cross multiply
    108,833.54x = 163,219.29 × 42,259.43
  4. Step 4: Simplify right side
    108,833.54x = 6,897,553,344.31
  5. Step 5: Solve for x
    x = 6,897,553,344.31/108,833.54
  6. Step 6: Final answer
    x = 63,377.10

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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.