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Finding the Fourth Proportional to 108,833.92, 163,313.90 and 45,648.41

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Solution

The fourth proportional to 108,833.92, 163,313.90 and 45,648.41 is: 68,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,833.92 : 163,313.90 = 45,648.41 : x
  2. Step 2: Convert to fraction form
    108,833.92/163,313.90 = 45,648.41/x
  3. Step 3: Cross multiply
    108,833.92x = 163,313.90 × 45,648.41
  4. Step 4: Simplify right side
    108,833.92x = 7,455,020,388.30
  5. Step 5: Solve for x
    x = 7,455,020,388.30/108,833.92
  6. Step 6: Final answer
    x = 68,499.05

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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.